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 who Khosrow II sent with the Jews to conquer Jerusalem in 610. From 632 until 680 the '''Tayyaye of Mehmet''' "Mahmet People" were commanded by the Messianic-Mithraic Arab Alids. The next we We hear of the '''Tayyaye of Mehmet''' Hagarim 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. In 636, the proto-Karaite Emir accepted the surrender of the Sassanians who assisted him in conquering Syria where they rose in prominence as the Quraysh Hagarim. Meanwhile the side-lined Alids' '''Tayyaye of Mehmet''' Hagarim rose in alliance with their old Ercolian Pahlavi allies in the East to establish their Imamate in Persia. In 656 a civil war broke out between the Quraysh Hagarim and the Alid Hagarim. The proto-Karaite Bakr family picked the wrong side and were conquered by the '''Tayyaye of Mehmet''' Hagarim while the Quraysh Hagarim withdrew to fortify themselves in Syria. In 680 the Quraysh Hagarim attacked the Alid Hagarim giving the proto-Karaite Bakr Family an opportunity to take back control of the Empire again until Abdul Malik succeeded in imposing the rule of the Quraysh Hagarim in 692 AD. Abdul Malik decided that it was in his best interest to revise the religion to abolish the importance of the proto-Karaites. A new Qibla in the Hejaz was established. 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.
