المختار الثقفي
According to certain traditions, Abd-Allah died in 717 in Humeima in the house of Mohammad ibn Ali Abbasi, the head of the Abbasid family, and before dying named Muhammad ibn Ali as his successor. Although the anecdote is considered a fabrication, at the time it allowed the Abbasids to rally the supporters of the failed revolt of Mukhtar al-Thaqafi, who had represented themselves as the supporters of Muhammad ibn al-Hanafiyya. By the time the revolution was in full swing, most Kaysanite Shia had either transferred their allegiance to the Abbasid dynasty (in the case of the Hashimiyya), or had converted to other branches of Shi'ism and the Kaysanites ceased to exist.