View source for Ya'qub ibn al-Layth al-Saffar

{{Short description|Safarid Dynasty Amir from 861 to 879}}
{{Use dmy dates|date=December 2024}}
{{Infobox royalty
| name         = Ya'qub ibn al-Layth{{Clear}}{{lang|fa|{{nq|یعقوب لیث صفاری}}}}
| title        = [[Amir]] of the [[Saffarid dynasty]]
| image        = An illustrated and illuminated folio from a manuscript of Husayn Va’iz al-Kashifi’s Akhlaq-i Muhsini; Ya'qub ibn Layth standing on the roof in full armour, Persia, Shiraz, Safavid, 16th century.jpg
| image_size   = 
| caption      = Ya'qub ibn al-Layth standing on the roof in full armour, folio from a manuscript of [[Husayn Kashifi]]'s ''Akhlaq-i Muhsini''. Created in [[Shiraz]], [[Safavid Iran]], 16th century
| reign        = 861–879
| coronation   = 
| predecessor  = 
| successor    = [[Amr ibn al-Layth]]
| spouse       = 
| issue        = 
| royal house  = [[Saffarid]]
| father       = Laith
| mother       = 
| birth_date   = 25 October 840
| birth_place  = Karnin (near [[Zaranj]]), [[Tahirid dynasty|Tahirid Khorasan]], Abbasid&nbsp;Caliphate
| death_date   = 5 June 879 (aged 38)
| death_place  = [[Gundeshapur]], Saffarid State
| place of burial = [[Tomb of Yaghub Leys Safari]], Gundeshapur, Dezful, Khuzestan, Iran
}}
'''Ya'qub ibn al-Layth Saffar''' ({{langx|fa|یعقوب لیث صفاری}}; 25 October 840 – 5 June 879),<ref>{{cite book |quote=''The provincial Persian Ya'kub, on the other hand, rejoiced in his plebeian origins, denounced the Abbasids as usurpers, and regarded both the caliphs and such governors from aristocratic Arab families as the Tahirids with contempt.'' – Ya'kub b. al-Layth al Saffar |author=C. E. Bosworth |title=The Encyclopaedia of Islam |volume=XI |page=255}}</ref> was a coppersmith and the founder of the [[Saffarid dynasty]] of [[Sistan]], with its capital at [[Zaranj]] (a city now in south-western [[Afghanistan]]). Under his military leadership, he conquered much of the eastern portions of [[Greater Iran]] consisting of modern-day [[Iran]], Afghanistan, [[Turkmenistan]], [[Uzbekistan]], [[Tajikistan]] as well as portions of western [[Pakistan]]<ref name= "Britannica1">{{cite web
|url=http://www.britannica.com/eb/article-9077826/Yaqub-ibn-Laith-as-Saffar
|title=Yaʿqūb ibn Layth al-Ṣaffār
|publisher=[[Encyclopædia Britannica]] Online
|access-date=15 July 2007
}}</ref><ref name= "Britannica2">{{cite web
|url=https://www.britannica.com/topic/Saffarid-dynasty
|title=Saffarid Dynasty 
|publisher=Encyclopædia Britannica Online
|access-date=15 July 2007
}}</ref> and a small part of [[Iraq]]. He was succeeded by his brother, [[Amr ibn al-Layth]].

==Early life==
Ya'qub was born in 840, of eastern Iranian origin,{{sfn|Baumer|2016|p=24}} in a small town called ''Karnin'' (Qarnin), which was located east of [[Zaranj]] and west of [[Lashkargah|Bost]] (Lashkargah), in what is now [[Afghanistan]].{{sfn|Noldeke|2007|p=170}} Information about his genealogy and social background is lacking. [[Clifford Edmund Bosworth]] explains that several [[Sunni Islam|Sunni]] sources were invariably hostile to Ya'qub because of the disrespect he showed toward the [[Abbasid]] caliph.<ref name="books.google.com">Bosworth, "The Armies of the Saffarids", pp. 536, 541. Cited in {{cite book |last=Kraemer |first=Joel L. |year=1986 |title=Philosophy in the Renaissance of Islam: Abū Sulaymān Al-Sijistānī and His Circle |publisher=Brill Archive |isbn=978-9004072589 |at=[https://books.google.com/books?id=O9QUAAAAIAAJ&pg=PA6 fn. 15, pp. 6–7]}}</ref> "Some sources accused Ya'qub of being a [[Khariji]], [[Ibn Khallikan]] labeled him a Christian, and [[Nizam al-Mulk]] claimed that he converted to [[Ismailism]]".<ref>{{cite book |author=Niẓām al-Mulk |translator=Hubert Darke |title=The Book of government or Rules for kings: The Siyāsat-nāma or Siyar al-Mulūk |location=New Haven |publisher=Yale University Press |year=1960 |page=15}}</ref> However, these claims came roughly a century after Yaqub's death, and most sources agree on Ya'qub's ascetic lifestyle.{{sfn|Tor|2007|p=181}}

According to numerous sources, he was extremely poor, and because of this, he occasionally consumed bread and onions. His family moved to the city of Zaranj due to the occasional [[sectarian violence]] between the Sunnis and [[Kharijites]]. Ya'qub began work as a [[coppersmith]] (''"saffar"''), while his brother [[Amr ibn al-Layth]] worked as a mule-hirer.<ref name="Iranica">{{cite encyclopedia |author=C. Edmund Bosworth |author-link=Clifford Edmund Bosworth |url=http://www.iranicaonline.org/articles/yaqub-b-lay-b-moaddal |title=YAʿQUB b. LAYṮ b. MOʿADDAL |encyclopedia=[[Encyclopædia Iranica]] |access-date=6 September 2012}}</ref>

== Rise to power ==
Ya'qub, along with his brothers [[Amr ibn al-Layth]], Tahir ibn al-Layth and Ali ibn al-Layth, later joined the [[Ayyār|ayyars]] under Salih ibn al-Nadr, who had opposed the Abbasids and began ruling in Bost. By 854, the ayyars managed to expel Ibrahim ibn al-Hudain, who was the [[Tahirid]] governor of Sistan. Another ayyar leader, Dirham ibn Nasr, succeeded in unseating Salih as the king of Sistan in 858. However, in 861, Ya'qub overthrew Dirham, and gave himself the title of [[Emir]] at that point.{{sfn|Bosworth|1975a|p=109-111}}{{sfn|Noldeke|2007|p=170}}

==Reign==

===Campaigns in Sistan and Khorasan===
[[File:Transoxiana 8th century.svg|thumb|right|upright=1.35|Map of [[Khurasan]], [[Transoxiana]] and [[Tokharistan]]]]
Ya'qub attracted the attention of an [[Abbasids|Abbasid]] [[caliph]] by first battling Kharijites in his homeland of Sistan. In 864, "Yaʿqub led an expedition to [[Lashkar Gah|Bost]] against his former master Salih, and then into Rukkaj and [[Zamindawar|Zamindāvar]] against the local ruler there, the [[Zunbils|Zunbil]], killing him and securing an immense booty."<ref name="Iranica"/> He also managed to capture several family members of the Zunbils, including the Zunbil king's son. He then vanquished the [[Hindu Shahis]], conquering their capital [[Kabul]]. He later moved against the [[Khawarij|Kharijites]] in northern [[Sistan]], winning a decisive victory and killing their leader Ammar ibn Yaser in 865. Ya'qub's campaigns marked the decline of militant [[Kharijism]] in the East. After having defeated the Ammar, Ya'qub held a celebration. During the celebration, one of the members of the court made a speech in Arabic. Ya'qub asked the latter why he made a speech in a language which he could not understand. One of Ya'qub's secretaries, Muhammad ibn Vasif, then made a ''[[qasida]]'' in [[Persian language|Persian]].{{sfn|Bosworth|1975b|p=595}}

Ya'qub claimed the inheritance of the kings of Persia and sought "to revive their glory," and thus in 867 he sent a poem written by himself to the [[Abbasid Caliphate|Abbasid]] caliph [[Al-Mu'tazz]]. The poem said: "With me is the ''[[Derafsh Kaviani]]'', through which I hope to rule the nations."<ref>{{cite encyclopedia |url=http://www.iranicaonline.org/articles/flags-i |title=FLAGS i. Of Persia |author=A. Shapur Shahbazi |encyclopedia=[[Encyclopaedia Iranica]]}}</ref>

In 870/871, Ya'qub marched against the Kharijites of [[Herat]], and defeated them. He then marched towards [[Karukh]], and defeated another Khariji leader who was named Abd al-Rahman.{{sfn|Tor|2002|p=296}} Ya'qub then pardoned Abd al-Rahman and made him governor of [[Isfizar]].{{efn|C.E. Bosworth and D.G. Tor, citing al-Tabari, state that Ya'qub executed Abd al-Rahman, but Bosworth also cites the ''Tarikh-i Sistan'' which states Ya'qub installs Rahman as governor.{{sfn|Tor|2002|p=296}}{{sfn|Bosworth|1975a|p=110}}}}

His army would later march to [[Ghazni|Ghazna]], [[Kabul]], and [[Bamyan, Afghanistan|Bamyan]], conquering these territories from the [[Hindu Shahi]], and appointing Muslim governors. From there they moved to north of the [[Hindu Kush]] and by 870 AD the whole of Khorasan was brought under their control. The [[Panjshir Valley]] was now under Ya'qub's control, which made him able to mint silver coins. In 873, Ya'qub ousted the [[Tahirids]] from their own capital of Nishapur,{{sfn|Bosworth|1994|p=81}} and captured its ruler [[Muhammad ibn Tahir]], which led to conflicts with the Abbasid caliphate.{{sfn|Bosworth|1994|p=120, 122-123}} During one of Ya'qub's numerous battles, his face was disfigured to the point that he could only eat through a pipe in his mouth for twenty days.<ref>{{cite book |first=B.G.|last=Gafurov |title=Central Asian:Pre-historic to Pre-Modern Times |publisher=Shipra Publications |year=2005 |pages=53–54}}</ref>

===Campaigns in Western Iran===
Ya'qub set out west for [[Fars province|Fars]] with the intention of subjugating the province. Sources disagree on what happened next, but Ya'qub was eventually dissuaded from continuing his expedition, and he turned back toward Sistan. His withdrawal is described as having been caused either by the governor [[Muhammad ibn Wasil]]'s submission to him, or by the arrival of emissaries sent by the caliphal government to convince him to abandon his westward advance. In either case, Muhammad soon afterwards reached a rapprochement with the central government, and in 872 he handed over the [[kharaj]] (tax revenues), and possibly the government of Fars, to a caliphal representative.{{sfn|Bosworth|1994|pp=148–149}}{{sfn|Tor|2007|pp=132–133}}{{sfn|al-Tabari|pp=119, 137}} Ya'qub later traveled to [[Tabaristan]] in 874, and battled the [[Zaydid]] leader [[al-Hasan ibn Zayd]]. Ya'qub collected taxes in Tabaristan's capital [[Amol|Amul]] before departing for Rayy.

Ya'qub ibn al-Layth once again set out for Fars, this time, invading it and advancing to [[Estakhr]], seizing Muhammad's treasuries there. Muhammad departed from [[Khuzestan]], and returned to Fars in an attempt to stop Ya'qub. They met near [[Bakhtegan Lake|Lake Bakhtegan]] in August 875, and in the resulting battle, Muhammad, despite having a numerically superior army, was defeated. Muhammad was forced to flee; Ya'qub looted Muhammad's stronghold at Sa'idabad and took control of Fars.{{sfn|Bosworth|1994|pp=150–152}}{{sfn|Tor|2007|p=157}}{{sfn|al-Tabari|p=166}}

[[File:Battle of Dayr al-'Aqul.svg|upright=1.35|thumb|Map showing the location of the battle, as well as the routes taken by the Saffarid (red) and main 'Abbasid (blue) armies]]
[[File:مجسمه یعقوب لیث در زابل.jpg |thumb|right|Statue of Ya'qub in [[Zabol]], Iran]]

In 876, the Abbasid representative [[Al-Muwaffaq]] offered Ya'qub governorship of Khurasan, Tabaristan, Fars, [[Gurgan]], and [[Ray, Iran|Ray]], and to appoint him as head of security in Baghdad.{{sfn|Bosworth|1994|pp=153–155}}{{sfn|al-Tabari|pp=168–169}}{{sfn|Ibn al-Athir|p=260}}{{efn|Ibn Khallikān adds Kirman, Adharbayjan, Qazwin and al-Sind to this list.{{sfn|Ibn Khallikān|p=312}}}} Ya'qub, sensing that the offer was made due to the weakness of the caliph, rejected it and wrote back that he would be advancing to the capital. The offer also alienated the Turks of Samarra, who felt that Ya'qub represented a threat to their interests. Seeing that an agreement with the Saffarid was impossible, the [[Abbasid]] caliph [[al-Mu'tamid]] decided upon war and pronounced a formal curse upon Ya'qub. On 7 March 876, al-Mu'tamid left Samarra, leaving his son [[Al-Mufawwad]] in charge of the capital. On 15 March he arrived at Baghdad, before arriving near [[Kalwadha]] and setting up camp.

Ya'qub traveled through Khuzistan, during which he gained the defection of a former general of the caliph's, [[Abi'l-Saj Devdad]], and entered Iraq. The caliphal general [[Masrur al-Balkhi]] managed to slow down his progress by flooding the land outside [[Wasit]], but the Saffarid army was able to get through this and he entered Wasit on 24 March. Leaving Wasit, he set out for the town of Dayr al-'Aqul, which was about fifty miles from Baghdad.{{sfn|Bosworth|1994|pp=158–159}}{{sfn|al-Tabari|pp=169–170}}{{sfn|Ibn al-Athir|pp=260–261}}{{sfn|Ibn Khallikān|pp=313, 316}} According to one source, Ya'qub did not actually expect the caliph to offer battle; instead he would give in to any demands that the Saffarid had.{{sfn|Bosworth|1994|p=161}}{{sfn|Ibn Khallikān|p=315}} Al-Mu'tamid, however, sent al-Muwaffaq to stop him. The two armies met at Istarband, between Dayr al-'Aqul and Sib Bani Kuma.{{sfn|Bosworth|1994|p=159}}{{sfn|al-Tabari|p=170}}{{sfn|al-Mas'udi|1874|p=43}}{{sfn|Ibn Khallikān|p=31}}

The [[Battle of Dayr al-Aqul]] took place on 8 April 876.{{sfn|Bosworth|1994|p=159}}{{efn|The actual date is given variously in the Arabic sources, such as 1 April{{sfn|al-Tabari|p=170}} and 10 April{{sfn|Ibn al-Athir|p=261}}}} Before the battle, Ya'qub reviewed his troops, who apparently numbered about ten thousand. The Abbasids, however, had a numerical superiority{{sfn|Bosworth|1994|p=159}}{{sfn|Ibn Khallikān|p=314}} and the additional advantage of fighting on familiar territory. The center of the Abbasid army was commanded by al-Muwaffaq. Musa bin Bugha had command of the right wing, and Masrur al-Balkhi the left.{{sfn|Bosworth|1994|p=159}}{{sfn|al-Tabari|pp=170, 172}}{{sfn|Ibn al-Athir|p=261}} A final appeal was made to the Saffarids to restore their loyalty to the caliph, and the battle began.{{sfn|Bosworth|1994|pp=159–160}}{{sfn|Ibn Khallikān|pp=313–314}}

The fighting raged on for most of the day. The Saffarid army was somewhat reluctant to directly fight the caliph and his army. Despite this, there were heavy losses on both sides, and several Abbasid and Saffarid commanders were killed. Ya'qub himself was wounded, but he did not leave the field. As evening approached, reinforcements arrived to support al-Muwaffaq.{{sfn|Bosworth|1994|p=160}}{{sfn|al-Tabari|pp=170–171}}{{sfn|Ibn al-Athir|p=261}}{{sfn|al-Mas'udi|1874|pp=43–44}}{{sfn|Ibn Khallikān|pp=314–316, 318–319}} The ''[[mawla]]'' Nusayr created a diversion by attacking the Saffarid rear from boats on the [[Tigris]] and setting fire to the [[Saffarid]] baggage train, giving the [[Abbasids]] a further advantage.{{sfn|Bosworth|1994|p=160}}{{sfn|al-Mas'udi|1874|pp=44–45}}

Eventually the Saffarid army began to flee from the battle. Ya'qub and his bodyguards continued to fight, but were forced to leave the field as the army retreated, leaving them behind.{{sfn|Bosworth|1994|p=160}}{{sfn|al-Tabari|p=171}}{{sfn|Ibn al-Athir|p=261}}{{sfn|al-Mas'udi|1874|pp=44–45}}{{sfn|Ibn Khallikān|pp=315–316, 319}} The caliph had apparently flooded the lands behind the Saffarids before the battle, and this made a retreat difficult; many men drowned attempting to escape the Abbasid army.{{sfn|Bosworth|1994|p=159}}{{sfn|al-Mas'udi|1874|p=43}} With the Saffarids making their hasty exit, al-Muwaffaq was able to capture Ya'qub's baggage. Several political prisoners that Ya'qub had brought with him, such as the Tahirid [[Muhammad of Khorasan|Muhammad bin Tahir]], also fell into Abbasid hands and were freed.{{sfn|Bosworth|1994|p=160}}{{sfn|al-Tabari|p=171}}{{sfn|Ibn al-Athir|p=261}}{{sfn|al-Mas'udi|1874|pp=44–45}}{{sfn|Ibn Khallikān|pp=315–316, 319}}

Ya'qub then withdrew from Iraq and died three years later.{{sfn|Bosworth|1994|p={{page needed|date=August 2020}}}}{{sfn|al-Tabari|p={{page needed|date=August 2020}}}}

== Ideology ==
[[File:Ya'qub al-Layth's Silver Dirham.jpg|thumb|Silver Dirham of Ya'qub ibn al-Layth]]
The motivation behind the Saffarids' initial campaigns remains unknown and highly debated in secondary scholarship. Some scholars believe that Ya'qub fought as a ghazi warrior for the purpose of spreading proto-Sunni Islam, others support the notion that he was motivated by his Persian identity,{{efn|D.G. Tor states S.M Stern's thesis work, which concerned Ya'qub's Persian nationalism, was based on one poem.{{sfn|Tor|2007|p=87}}}}  while others believed he had a love for military conquest.{{sfn|Tor|2007|p=87}} Ya'qub's hostility towards the Abbasid caliphs was easily seen.

The religion of the Saffarid's founder, Ya'qub, has been a topic of debate.{{sfn|Tor|2007|p=85-87}} Most of the primary sources were written during or after the fall of the Samanid dynasty and view the Saffarids through Samanid eyes.{{efn|According to D.G. Tor, the Samanids vilified the Saffarids in order to increase their own legitimacy since they were competing against them for territory.{{sfn|Tor|2007|p=90}}}} These primary sources depict Ya'qub either as a religious rascal or a volunteer Sunni warrior – a ''mutatawwi''.{{sfn|Tor|2007|p=90}} Yet Kharijism prospered in Sistan longer than anywhere else in eastern Iran, and it was believed the Saffarids held Kharijite sympathies.{{sfn|Bosworth|1975|p=107}} Ya'qub even won Kharijite support in Sistan.{{sfn|Rahmati|2020|p=44}}

[[C.E. Bosworth]] states the early Saffarid emirs did not appear to have significant religious beliefs.{{sfn|Meisami|1999|p=120}} The vizier [[Nizam al-Mulk]], obsessed with the integrity of the Seljuk Empire, depicts Ya'qub as an Ismaili convert.{{sfn|Bosworth|1975a|p=108}}

According to the ''[[Tarikh-i Sistan]]'', Ya'qub even said that the Abbasids were liars, and also said: "Haven't you seen what they did to Abu Salama, [[Abu Muslim]], the [[Barmakids|Barmakid family]] and [[Fadl ibn Sahl]], despite everything which these men had done on the dynasty's behalf? Let no one ever trust them!"{{sfn|Bosworth|1975a|p=125}}

==Death==
[[File:آرامگاه یعقوب لیث.jpg|thumb|[[Tomb of Ya'qub ibn al-Layth al-Saffar|Tomb of Ya'qūb-i Layth-i Saffār]], near [[Dezful]]]]
Ya'qub suffered from [[colic]] and refused treatments when advised to do so. As a result, he died on Wednesday, 5 June 879, in [[Gundeshapur]].{{sfn|Noldeke|2007|p=193}} He was succeeded by his brother [[Amr Saffari]]. Although he was not viewed as a gentleman, he also did not exercise any special cruelty. It was reported that he did not smile much, and was called "the [[anvil]]" by one of his enemies. According to [[Ibn Khallikan]], his wife was an [[Arab]] woman from [[Sistan]], although all other sources, including [[Ibn Athir]] and [[Juzjani, Abu Ubaid|Juzjani]], claim that Yaqub never married.{{sfn|Tor|2007|p=182}}{{sfn|Ibn Khallikān|p=330}}

==Legacy==
It was during Ya'qub's rule that [[Persian language|Persian]] was introduced as an official language, and Ya'qub reportedly did not know Arabic.<ref>{{cite book|last=Stern|first=S.M.|title=Yaqub the Coppersmith and Persian National Sentiment|year=1970|publisher=Edinburgh University Press|location=Edinburgh}}</ref><ref>{{cite book|title=Culture and Customs of Afghanistan|publisher=Greenwood Press|year=2005|page=27}}</ref> Ya'qub has been accorded the historical status of a popular folk hero since his court began the revitalization of the Persian language after two centuries in which the Arabic language flourished in Persian lands.<ref name= "Britannica2"/> Several poets, like Abu Ishaq Ibrahim ibn Mamshadh, fabricated Ya'qub's genealogy, tracing it back to the legendary Iranian king [[Jamshid]].<ref name="books.google.com"/> Ya'qub is also sometimes perceived as one of the first autonomous rulers in Khurasan since the Islamic conquests.<ref name= "Britannica1"/><ref name= "Britannica2"/> Ya'qub's campaigns in fact also marked the early stage in the decline of caliphal political unity in the Islamic world,<ref name="Iranica"/> which was further worsened by the ''[[ghulams]]'' ([[slave-soldier]]s in armies throughout the [[Islamic world]]) and the [[Dailamites]].

==Notes==
{{notelist}}

==References==
{{Reflist}}

==Sources==
* {{cite book|last=al-Mas'udi|first=Ali ibn al-Husain|title=Les Prairies D'Or |volume=8 |translator=C. Barbier de Meynard |location=Paris |publisher=Imprimerie Nationale |date=1874 |language=fr}}
* {{cite book |title=The History of Central Asia: The Age of Islam and the Mongols |first=Christoph |last=Baumer |volume=Three |publisher=I.B. Tauris |year=2016  |isbn=978-1-78453-490-5 |page=24}}
* {{cite book |chapter=The Ṭāhirids and Șaffārids |first=C.E. |last=Bosworth |pages=90–135 |title=The Cambridge History of Iran |volume=4:The Period from the Arab invasion to the Saljuqs |editor-first=R.N. |editor-last=Frye |publisher=Cambridge University Press |year=1975 }}
* {{cite book|last=al-Tabari|title=The History of Prophets and Kings}}
** {{cite book|ref=none |title=The History of al-Tabari, Vol. 36: The Revolt of the Zanj A.D. 869-879/A.H. 255-265 |series=SUNY series in Near Eastern Studies |translator=David Waines |publisher= SUNY Press |year=2015 |isbn=978-1438423043 |url=https://books.google.com/books?id=OyDaBOpCBnIC}}
** {{cite book|ref=none |title=The History of al-Tabari, Vol. 37: The 'Abbasid Recovery: The War Against the Zanj Ends A.D. 879-893/A.H. 266-279 |series=SUNY series in Near Eastern Studies |translator=Philip M. Fields |publisher= SUNY Press |year=2015 |isbn=978-1438402734 |url=https://books.google.com/books?id=-g9lXpCp_Y8C}}
* {{cite encyclopedia | last=Barthold | first=W. | title=ʿAmr b. al-Layth | encyclopedia = The Encyclopedia of Islam, New Edition, Volume I: A–B | publisher = BRILL | location = Leiden and New York | year = 1986 | isbn = 90-04-08114-3 | pages = 452–453}}
* {{cite book |last=Bosworth |first=C.E. |author-link= Clifford Edmund Bosworth |chapter=The Ṭāhirids and Ṣaffārids |title=The Cambridge History of Iran, Volume 4: From the Arab Invasion to the Saljuqs |year=1975a |publisher= Cambridge University Press |location=Cambridge |editor-first=R.N. |editor-last=Frye |pages=90–135 |isbn=0-521-20093-8 |chapter-url= https://books.google.com/books?id=hvx9jq_2L3EC}}
* {{cite book |last=Bosworth |first=C.E. |author-link= Clifford Edmund Bosworth |chapter=The rise of the new Persian language |title=The Cambridge History of Iran, Volume 4: From the Arab Invasion to the Saljuqs |year=1975b |publisher= Cambridge University Press |location=Cambridge |editor-last=Frye |editor-first=R.N. |pages=595–633 |isbn=0-521-20093-8 |chapter-url= https://books.google.com/books?id=hvx9jq_2L3EC&q=the+cambridge+history+of+iran+4}}
* {{cite book|last=Bosworth|first=C.E.|year=1994|title="The History of the Saffarids of Sistan and the Maliks of Nimruz" (247/861 to 949/1542-3) |publisher=Mazda Publisher |location=Costa Mesa, CA}}
*{{cite book|last1=Flood|first1=Finbarr B.|title=Objects of Translation: Material Culture and Medieval "Hindu-Muslim" Encounter|date=20 March 2018|publisher=Princeton University Press|isbn=978-0-691-18074-8|language=en}}
* {{cite book |last=Ibn al-Athir |first='Izz al-Din |title=Al-Kamil fi al-Tarikh}}
* {{cite book |last=Ibn Khallikān |first=Shams al-Din Abu al-Abbas Ahmad ibn Muhammad |title=Ibn Khallikan's Biographical Dictionary}} [https://books.google.com/books?id=xPnqvmzhsMcC Volume I], [https://books.google.com/books?id=zjTVAAAAMAAJ Volume III]
* {{cite book | title=Persian Historiography to the End of the Twelfth Century | year=1999 |publisher=Edinburgh University Press |last=Meisami |first=Julie Scott | isbn = 978-0748612765 |url=https://books.google.com/books?id=UGkuLXhnPLYC}}
* {{cite book|last1=Noldeke|first1=Theodor|year=2007|title=Sketches from Eastern History |publisher=Read Books |isbn=978-1-4067-7014-8|url=https://books.google.com/books?id=6ZGFAaGag2EC}}
* {{cite journal |journal=Journal of Persianate Studies |first=Mohsen |last=Rahmati |title=The Saffarid Ya'qub b. Layth and the Revival of Persian Kingship |publisher=Brill |year=2020 |volume=13 |pages=36–58 }}
* {{cite journal |title=A Numismatic History of the First Saffarid Dynasty (AH 247-300/AD 861-911) |first=D.G. |last=Tor |journal=The Numismatic Chronicle |volume=162 |year=2002 |pages=293–314 }}
* {{cite book|last=Tor|first=D.G.|year=2007|title=Violent Order: Religious Warfare, Chivalry, and the ʻAyyār Phenomenon in the Medieval Islamic World |publisher=Orient-Institut-Istanbul|location=Wurzburg, Germany}}

{{Commons category|Ya'qub ibn al-Layth}}

{{s-start}}
{{s-new}}
{{s-ttl | title=[[Saffarid dynasty|Emir of the Saffarids]] | years=867–879}} 
{{s-aft | after=[[Amr ibn al-Layth]]}}
{{s-end}}
{{Saffarid Rulers}}
{{Authority control}}

{{DEFAULTSORT:Saffari, Yaqub-i Laith}}
[[Category:Rulers of the Saffarid dynasty]]
[[Category:840 births]]
[[Category:879 deaths]]
[[Category:Rebels from the Abbasid Caliphate]]
[[Category:9th-century Iranian people]]
[[Category:Coppersmiths]]
[[Category:Invasions of India]]
[[Category:Warlords]]