敦煌本〈唯識大師無著菩薩本生緣〉、〈唯識論師世親菩薩本生緣〉之文本屬性與故事源流=The attribute of text and origin of stories in ＂Wei shi Da shi Wuzhu pusa ben sheng yuan＂ and ＂Wei shi lun shi Shiqin pusa ben sheng yuan＂ of Dunhuang Manuscripts
In the middle of the tenth century, the Wei shi lun shi Shiqinpusa ben sheng yuan and Wei shi lun shi Wuzhupusa ben sheng yuan were written in P.2680、P.3727, the name ＂ben sheng yuan＂ should be the common term of ＂ben sheng＂ and ＂yuan qi＂, the feature of this genre should be the narrative of achieving the happiness by staying off the course of suffering in principal and secondary causes of Bodihisattva' s travel. The main plot in Wei shi da shi Wuzhepusa ben sheng yuan is to hurt oneself so as to substitute dogs for biting by maggots, it could be found in Yunzeng．Yexijiangcheng's The Lineage from Masters to Masters on the Stages of the Path to Enlightenment in the Emperor Qianlong period of the Qing Dynasty and Sogyal Rinpoche's The Tibetan Book of Living and Dying. Furthermore, the Wei shi lun shi Shiqinpusa ben sheng yuan should be based on the translation of ChenZhendi's The Life of Vasu-Bandhu in the Southern Dynasties, and referring to the Xuanzang' s The Great T'ang Dynasty Record of the Western Regions and Tankuang' s Dasheng bai fa ming men lun kaizong yijue. So much that, Tankuang, who had been invited by btsan po of Tibet to entering Tibet but not yet completed, was the author of Wei shi lun shi Shiqinpusa ben sheng yuan and Wei shi lun shi Wuzhepusa ben sheng yuan these two texts.
