The Taji (tʾcyk') of Tachkastan were a sect of Essenes ([[Judeo-Baptist]] [[Gnostics]]) from the Formerly Roman Province of Tachkastan which was conquered by the Persians in 610AD. The Manicheans had seceded from them under the influence of Marcionism and Mandaeism.
They did not consider themselves Arabs (9:97) but spoke Quraysh, an Arabic dialect influenced by Imperial Aramaic which they called Intelligible Arabic (16:103) to distinguish it from the common language spoken by Muslim Arabs (49:14) Arabs (9:97).
They recognized their common ground (5:82) with Ebionite-like Jewish Messianists (Notsari) but called themselves the Believers (2:62) and also welcomed Halakhic Jews as Those who Guide (Alazeena Haadu) and Noahites as Judeo-Baptists (Sabi).
