The phrase '''Tayyaye of Mehmet''' refers to the '''Messianic Mithraic Arabs''' of [[Tachkastan]] who had been united to the [[proto-Karaites]] as [[Hagarim]], by the first of the '''Tayyaye of Mehmet''' known by name as [[Mehmet Ismaili]] according to [[Sebeos]]. [[Fredgar]] indicates that they were integrated with the Saracens (Pahlavis) of Ercolia. From 632 until 680 the '''Tayyaye of Mehmet''' were ruled by the Messianic-Mithraic Arab Alids. After an introduction by Sebeos, the first we hear of the '''Tayyaye of Mehmet''' in action is from Thomas the Presbyter when they were fighting in alliance with the proto-Karaite Bakr family against the Romans in 634 just 12 miles east of Gaza but from 636 onwards they seem to be mainly occupied with establishing the Imamate of the Messianic-Mithraic Arab Alids in Persia. In 680 the proto-Karaite Bakr Family tried to take control of the Empire before Abdul Malik succeeded in imposing the rule of the Quraysh in 692 AD. Under the rule of the Quraysh, the Persian cavalries were abolished and Messianic Mithraism evolved into Islam as we know it.
[[Mehmet Ismaili]] could have been the historical 7th century figure behind the Islamic legends of [[Al-Iyas ibn Qabisa]] and [[Muhammad ibn Abdullah]]. But he is not the [[Mehmet]] for whom the '''Tayyaye of Mehmet''' are named.
