佛祖統紀 23.51

23.51

First year of Jianzhong (gengshen, lasting four years).
On the fifth day of the second month in the third year of Jianzhong, Chan Master Jingxi manifested nirvāṇa at Folong.
First year of Xingyuan (jiazi).
First year of Zhenyuan (yichou, lasting twenty-one years).
During Zhenyuan, the Tenth Patriarch, Dharma Master Sui, expounded cessation and contemplation for Dharma Master Xiu at Guoqing.