高僧傳 10.18

10.18

後憩上虞龍山大寺。善談《莊》、《老》，究明《論》、《孝》，而韜光隱迹，世莫之知。會稽謝邵、魏邁之、放之等，並篤論淵博，皆師受焉。後同止沙門夜聞宗共語者，頗說蓬萊上事，曉便不知宗所之。陶淵明《記白土埭遇三異法師》，此其一也。或云有商人海行，於孤洲上見一沙門，求寄書與史宗。置書於船中，同侶欲看書，書著船不脫。及至白土埭，書飛起就宗，宗接而將去。

Later he rested at the Great Temple of Longshan in Shangyu. He was skilled in discussing the Zhuangzi and Laozi and had thoroughly mastered the Analects and Classic of Filial Piety, yet he concealed his brilliance and hid his tracks, so the world knew nothing of him. Xie Shao, Wei Maizhi, Fangzhi, and others of Kuaiji, all profound scholars of deep learning, took him as their teacher. Later, monks lodging with him heard Shi Zong speaking with someone at night, recounting matters of Penglai at some length; by dawn, no one knew where Shi Zong had gone. In Tao Yuanming's Record of Meeting Three Extraordinary Dharma Masters at Baitu Dike, he was one of them. Some say that a merchant traveling by sea saw a śramaṇa on an isolated isle, who asked him to deliver a letter to Shi Zong. He placed the letter in the boat; when his companions tried to read it, the letter adhered to the boat and would not come free. When they reached Baitu Dike, the letter flew up and went to Shi Zong, who caught it and carried it away.