宋高僧傳 17.14

17.14

系曰：《化胡經》也，二教不平，其爭多矣！無若法明一言蔽之。設或凝神抒思，久不可酬，況復萬乘之前，孰能卒對？昔楊素見嵩陽觀畫「化胡」，素曰：「何不化胡成道，而成佛乎？」道士無言。觀夫明之垂問，義含兩意，正為化胡成佛，旁釁諸天仙言語與人不同，天言傳授諸經，是誰辯譯？其猶一箭射雙鳧，又若一發兩豵之謂歟！

Appraisal: Regarding the Scripture of Converting the Barbarians, the two teachings were not at peace, and their disputes were many! None was like Faming, who settled it with a single word. Even if one were to concentrate one's spirit and summon one's thoughts, it could not be answered for a long time; how much more before the Sovereign of Ten Thousand Chariots—who could respond on the spur of the moment? Formerly, Yang Su saw a painting of 'Converting the Barbarians' at Songyang Monastery; Su said: 'Why not convert the barbarians to attain the Dao, instead of becoming a Buddha?' The Daoist was speechless. Observing Faming's questioning, the meaning contained two implications: directly regarding converting the barbarians into Buddhas, and secondarily questioning that the language of devas and immortals is different from human speech; when heavenly words transmitted the scriptures, who translated them? Is this not like shooting two ducks with a single arrow, or taking two young pigs with a single shot!