Baoxing lun （Ratnagotravibha^ga-maha^ya^nottaratantra-/sa^stra; Jewel-Nature Treatise）. A mixture of verse and prose which is a basic text in the articulation of tatha^gatagarbha 如来藏 thought in Indian Maha^ya^na Buddhism. The full Chinese title is written 佛性分别大乘究竟要义论， and more briefly as 究竟一乘宝性论. 4 fasc.， T 1611.31.813-48. The Chinese tradition gives Sa^ramati 贤慧 as the author， while the Tibetan tradition lists Maitreya 弥勒 and Asan%ga 世亲 as co-authors. The translation into Chinese is recorded as being done by Ratnamati in 511. The text explains in detail the theory that all sentient beings， no matter how horrible their crimes （such as icchantikas）， possess the potential to attain Buddhahood. The great power possessed by the buddhas is able to erase the karma of these crimes.