Abu Muslim Abd al-Rahman ibn Muslim Khorasani or al-Khurasani (Arabic: أبو مسلم عبد الرحمن بن مسلم الخراساني born 718-19 or 723-27, died in 755), born Vehzādān Pūr-i Vandād Hormoz (Persian: وهزادان پور ونداد هرمزد), was a general in service of the Abbasid dynasty, who led the Abbasid Revolution that toppled the Umayyad dynasty.
Origin and name
According to the Encyclopedia Iranica, "sources differ regarding his original name and his origin. Some make him a descendant of Gōdarz and of the vizier Bozorgmehr and call him Ebrāhīm; some name him Behzādān, son of Vendād Hormoz; and others relate him to the ʿAbbasids or to ʿAlī’s family. These suggestions are all doubtful". He was possibly of Persian origin and was the mowlā of an Arab tribe. Other sources refer to him as a Yaminite, a Kurd, an Arab or even a descendant of the ancient Iranian aristocracy. It is also said that he was born in Sar-e Pol Province of present-day Afghanistan to a Tajik family.