佛祖統紀 27.138

27.138

有朋號牧菴。住南湖。一日坐青玉軒。請行人諷觀經。至真法身觀。復令大眾唱佛。留偈坐亡。

Youpeng, styled Mu'an, resided at Nanhu. One day, sitting in the Qingyu Porch, he invited practitioners to chant the Contemplation Sūtra; when they reached the contemplation of the True Dharma Body, he further instructed the great assembly to chant the Buddha's name, left behind a verse, sat, and passed away.