Syr. author. The circumstances of his life are completely unknown, apart from the fact that Patr. Dionysios of Tel Maḥre (d. 845) dedicated his (now lost) Ecclesiastical History to him. Of his works, only his ‘Commentary on the Liturgy’, in 4 Books, has so far been published. Other writings of his are treatises on the following topics: the Soul, the Resurrection of Bodies, Priesthood (though this may be by Mushe bar Kipho ), Paradise, Creation, the Divine Economy, the Resurrection of Christ, Pentecost, the Finding of the Cross, demons, Christian doctrine, against heretics, and a Commentary on Pseudo-Dionysius the Areopagite’s ‘Celestial and Ecclesiastical Hierarchies’.