佛祖統紀 35.40

35.40

三年。安息沙門安世高。有同學死為共亭湖神（共音恭即彭蠡湖屬南康）能使過船分風上下。世高至廟神謂之曰。我家此湖千里以昔布施。今大有珍寶以多瞋今受蟒身。幸取我繒寶。為造一塔祈生善處。世高遂於豫章建寺造塔。後蟒死山中。首尾數里（今大安寺）。

In the third year, the Parthian monk An Shigao had a fellow student who died and became the deity of Lake Gongting (Gong is pronounced like gong [恭]; it is Lake Pengli, belonging to Nankang). He could cause passing boats to have the wind divided for ascending and descending [the lake]. When Shigao reached the shrine, the deity said to him, 'My home governs this lake for a thousand li. Because of past generosity, I now have abundant treasures; but because of excessive anger, I have now received the body of a python. Please take my silks and treasures to build a stupa for me, praying for birth in a good realm.' Shigao thereupon established a monastery and built a stupa in Yuzhang. Later, the python died in the mountains, its head and tail spanning several li (now Da'an Monastery).