廣弘明集 13.110

13.110

外論曰。夫聖人妙相本異凡夫。或八采雙瞳。河目海口。龍顏鶴步。反宇奇毫。至如卷髮綠睛。夷人之本狀。高鼻深目。胡子之常形。豈可匹我聖人用為奇相。若事佛得此報者。中國士女翻作胡形。此相好之異八也。

The external treatise says: The wondrous marks of the sages were originally distinct from ordinary men: some had eight colors and double pupils, river-like eyes and sea-like mouths, dragon countenances and crane-like gaits, overturned foreheads and extraordinary moles. As for curly hair and green irises, these are the original features of barbarians; high noses and deep-set eyes are the common appearance of the Hu people. How could these be matched against our sages and taken as extraordinary marks? If one obtains this retribution by serving the Buddha, gentlemen and ladies of the Central Plains would instead turn into Hu appearances. This is the eighth distinction in marks and characteristics.