Persian revolts against the Rashidun Caliphate

Persian revolts against the Rashidun Caliphate
Part of The Aftermath of the Muslim conquest of Persia and the First Fitna
Istakhr
Izeh
Nishapur
Fasa
Darabgard
Zaliq
Kerman
Merv
Herat
Khuzestan
Zaranj
Tammisha
Persian revolts against the Rashidun Caliphate (Iran)

Rebellious cities
Sites of Battle

Map depicting the sites of rebellions against the Rashidun authority in Early Mediaeval Iran and it's surrounding regions
Date650–661 CE
Location
Sasanian Empire (modern Iran, Iraq, and surrounding regions)
Result Rashidun victory
Territorial
changes
Rashidun Caliphate consolidates control over former Sasanian territories
Belligerents
Rashidun Caliphate
Supported by:
Dehqans of Persia
Sasanian loyalists
Qarinvand dynasty
Hephthalites
Nezak Huns
Māhawayh
Commanders and leaders
Uthman ibn Affan
Ali ibn Abi Talib
Abu Musa al-Ash'ari
Umayr ibn Ahmar
Abd Allah ibn Amir
Abd Allah ibn Abbas
Rabi ibn Ziyad al-Harithi
Ziyad ibn Abihi
Sa'id ibn al-As
Hasan ibn Ali
Husayn ibn Ali
Ja'dah ibn Hubayrah
Barāz ibn Māhūya
Khulayd bin Qurrah
Abdallah ibn Ma'mar al-Tamimi  X
Dahak
Qarin 
Rebel leader in Khuzestan  
Several other unorganised rebels
Strength
20,000–40,000 Unknown, mostly local militias and remnants of Sasanian army
Casualties and losses
Unknown; likely light, with some soldiers killed or wounded Tens of thousands killed or captured; significant civilian casualties
Revolts occurred sporadically across former Sasanian provinces; included major uprisings in Fars, Khuzestan, and Khorasan.

The Persian revolts against the Rashidun Caliphate were a series of uprisings and insurgencies across former Sasanian territories between 650 and 661 CE. Following the initial Muslim conquest of Persia, these rebellions represented a major challenge to the consolidation of Rashidun control over the territories of the former Sasanian Empire. The unrest was primarily driven by the marginalization of the Persian elite and economic discontent regarding the imposition of taxes such as the Jizya and Kharaj.

The revolts intensified during the reigns of Caliphs Uthman and Ali, particularly in provinces such as Fars, Khorasan, Kerman, and Tabaristan. In cities like Istakhr, the rebellions were frequent and often required multiple military expeditions to suppress. Local Zoroastrian populations and remnants of the Sasanian army occasionally coordinated these efforts, at times providing support to the last Sasanian emperor, Yazdegerd III.

Internal instability during the First Fitna provided further opportunities for regional revolts. However, Arab commanders, including Abd Allah ibn Amir and Ziyad ibn Abihi. eventually re-established Rashidun control through a series of decisive campaigns.These conflicts resulted in significant casualties and paved the way for the stabilization of the region under the succeeding Umayyad Caliphate.