Refutation of the Jews and Christians
Date: before 833
Original Language: Arabic
The work is listed by Ibn al-Murtaḍā, Kitāb ṭabaqāt al-Muʿtazila, ed. S. Diwald-Wilzer, Beirut, 1988, p. 123, who says that the caliph wrote 'many books', but names only this and a work against the Manicheans.
Van Ess (TG iii, p. 202) dismisses it and other works against non-Muslims attributed to al-Maʾmūn as part of the lege…