佛祖統紀 23.71

23.71

First year of Longji (jiyou).
The Twelfth Patriarch, Dharma Master Xiu, expounded the Dharma-gate of cessation and contemplation for Dharma Master Song at Guoqing.
First year of Dashun (gengxu, lasting two years).
First year of Jingfu (renzi, lasting three years).
First year of Qianning (jiayin, lasting four years).
First year of Guanghua (wuwu, lasting three years).
First year of Tianfu (xinyou, lasting four years).