法苑珠林 6.121

6.121

又屈支國東境城北天祠前有大龍池。諸龍易形交合牝馬。遂生龍駒之子。方乃馴駕。所以此國多出善馬。聞諸先志曰。近代有王號曰金華。政教明察感龍馭乘。王欲終沒鞭觸其耳。因即潛隱以至千金。城中無井取彼池水。龍變為人與諸婦人會。生子驍勇走及奔馬。如是漸染人皆龍種。恃力作威不恭王命。王力乃引搆突厥殺此人。少長俱戮略無噍類。城今荒蕪人煙斷絕（右二驗出奘法師傳）。

Again, in the kingdom of Kucha, north of the city on the eastern border in front of a heavenly shrine, there was a great dragon pool. Dragons altered their shapes and copulated with mares, thereby giving birth to dragon-colts; only then could they be tamed and harnessed. For this reason, this country produces many fine horses. It is heard from past records: in recent times there was a king named Jinhua. His governance and teachings were discerning, moving the dragons to serve as his mount. When the king was about to pass away, his whip touched its ear, whereupon it immediately hid away, down to the present day. There were no wells in the city, so they took water from that pool. Dragons transformed into humans and had intercourse with various women, giving birth to sons who were valiant and swift, able to run as fast as galloping horses. Thus gradually permeated, all the people became of dragon seed. Relying on their strength, they acted aggressively and did not obey the royal commands. The king then secretly drew in the Turks to kill these people; young and old were all slaughtered, leaving virtually none alive. The city is now desolate and overgrown, with human habitation cut off. (The above two evidential accounts are drawn from Master Xuanzang's *Biography*.)