 Vasubandhu wrote a number of commentaries on Buddhist scriptures, primarily (but not exclusively) those that are classified as Mahāyāna Sūtras. He also wrote a tremendously influential work on how to interpret and teach Buddhist scriptures, entitled the Proper Mode of Exposition (Vyākhyāyukti), in which (among other things) he argued for the legitimacy of the Mahāyāna Sūtras (which he called “Vaipūlya  Sūtras”).[15]