Analysis of information sources in references of the Wikipedia article "Αλ-Μουκάννα" in Greek language version.
Reputed to have come from Balkh (Balḵ), not Sogdiana, Hāšem participated in the ʿAbbāsid revolution (see ABBASID CALIPHATE) and continued to serve as a soldier and secretary in the army at Marv under Abu Dāwud Ḵāled b. Ebrāhim al-Ḏohli (governor of Khorasan 137-140/755-57), and his successor ʿAbd-al-Jabbār b. ʿAbd-al-Raḥmān al-Azdi (140-41/757-58).
Reputed to have come from Balkh (Balḵ), not Sogdiana, Hāšem participated in the ʿAbbāsid revolution (see ABBASID CALIPHATE) and continued to serve as a soldier and secretary in the army at Marv under Abu Dāwud Ḵāled b. Ebrāhim al-Ḏohli (governor of Khorasan 137-140/755-57), and his successor ʿAbd-al-Jabbār b. ʿAbd-al-Raḥmān al-Azdi (140-41/757-58).