佛祖歷代通載 8.57

8.57

（二十八）　魏文成帝末年。疏勒國王遣使送佛袈裟一頂。長二丈餘。帝審是佛衣。應有靈異。置之猛火經日不然。於是駭然心形俱肅信乎（出北史）。

(28) In the final years of Emperor Wencheng of the Wei, the King of Kashgar sent an envoy offering a Buddha kāṣāya, over two zhang long. The emperor carefully considered whether this was truly the Buddha's robe and whether it possessed spiritual anomalies; he placed it in a roaring fire, where it did not burn after an entire day. Thereupon, astonished, he was solemn in mind and form, truly believing (derived from the History of the Northern Dynasties).