Isaac of Nineveh, First book Babai of Nisibis Babai of Nisibis Isḥāq Shbadnāyā, 'Onitha Joseph Hazzaye John bar Penkaye Manuscript Name: Vat. sir. 592Link to Digitized Manuscript: Collection: Vat.sir.Language Tag: SyriacAuthors: Isaac of NinevehBabai of NisibisIsḥāq ShbadnāyāJoseph HazzāyāJohn bar PenkayeContent Key Words other Genres: Uncatalogued