These Baptists believed the Father's name had become flesh as the Messiah Jesus Mary's Son Rasul of the Father's physical Appearance (Divine Temple) which these Baptists called Mahmad (not to be confused with the Arabian Nabi) and so were also referred to as tribes of Mahmad. The term was written Muhmd by Anonymous, Mhmt by Thomas the Presbyter, Mahmet by Sebeos, and Mehmed by John of Damascus.
For the Hagarenes this term really referred to the Temple rather than Jesus.