Khurramites
The Khurramites (Persian: خرمدینان Khorrām-Dīnān, meaning "those of the Joyful Religion"; Arabic: خُرَّمِيَة Khurramiyya) were an Iranian religious and political movement with its roots in the movement founded by Mazdak. An alternative name for the movement is the Muḥammira (Arabic: محمرة, "Red-Wearing Ones"; in Persian: سرخجامگان Surkh-Jāmagān), a reference to their symbolic red dress.
Origins and History
The sect was founded by the Persian cleric Sunpadh and was a revitalization of an earlier sect that had mixed Shī‘a Islam and Zoroastrianism; however, its true claim to fame was its adoption by Bābak Khorramdin as a basis for rebelling against the Abbasid Caliphate.
The sect grew out of a response to the execution of Abu Muslim by the Abbasids, and denied that he had died, rather claiming that he would return as the messiah. This message was further confirmed by the appearance of a prophet named al-Muqanna‘ "The Veiled", who claimed that the spirit of God had existed in Muhammad, ‘Alī and Abu Muslim.