What is "mahayanasamgraha"

The Mahāyānasaṃgraha (MSg, The Mahāyāna Compendium/Summary, Traditional Chinese: 攝大乘論; Tibetan: theg pa chen po bsdus pa) is a key work of the Yogācāra school of Buddhist philosophy, attributed to Asanga (c. 310–390 CE). The MSg is a comprehensive work on the central doctrines and practices of the Yogacara school. It was translated into Chinese by Paramartha (499–567 CE) and became the central text of the Shelun school. Although no Sanskrit original has been found, the work survives in Tibetan (Tohoku, 4050; Peking, 5551.) and Chinese translations ( Taishō Tripiṭaka 1592, 1593, 1594), together with commentaries. There are two commentaries to the work; Vasubandhu's Mahāyānasaṃgraha-bhāṣya and the Mahāyānasaṃgraha-panibandhana by Asvabhava (first half of the sixth century).