As is evident from J. A. Maclean, *East. Syr. Daily Offices*, London 1894, p. 251. A. was the first to prescribe for monks the habit and tonsure.
BIBL.: G. S. Assemani, *Bibl. Orient.*, III, 155; Tommaso di Marca, ed. Budge, I, 1, ch. 4, and Introduction pp. CXXXIII ff.; *Cron. di Seert*: PO 7, col. 133; J. Labourt, *Le Christianisme dans l’empire Perse*, 2nd ed., Paris 1904, pp. 316–318; Maris, Amri et Slubac, *De patriarchis Nestoriorum commentaria*, ed. H. G. Simonis, I, Rome 1897, p. 41; *Liber castitatis*, ed. Chabot, in *Melanges d’Archéologie et d’Histoire*, 16 (1897), and ed. Bedjan under the title *Liber fundatorum monasteriorum in regno Persarum*, Paris 1901, § 14; J. B. Chabot, in *Journ. Asiat.*, ser. 9, 8 (1896), pp. 53–54.