Letter on Christianity
Date: Before 1057
Original Language: Arabic
The only reference to the existence of this work is given by Abel, ‘La “Réfutation d’un Agarène” de Barthélémy d’Édesse’, who mentions its title, and says that al-Maʿarrī dedicated it to the Būyid vizier Abū l-Qāsim al-Ḥusayn ibn ʿAlī l-Maghribī (d. 1027), with whom Elias of Nisibis (d. 1049) held a series of seven discussions. Abel does not cite a source.
Apart from this single referenc…