Hillenbrand, Carole, ed. (1989). The History of al-Ṭabarī, Volume XXVI: The Waning of the Umayyad Caliphate: Prelude to Revolution, A.D. 738–744/A.H. 121–126. SUNY Series in Near Eastern Studies. Albany, New York: State University of New York Press. ISBN 978-0-88706-810-2.