佛祖統紀 52.11

52.11

○憲宗。齊君佐梵僧與一棗食之。即悟前身是講經僧。乃投靈隱出家名鑑空。

Under Xianzong, an Indian monk gave Qi Junzuo a jujube to eat; he immediately awakened to the fact that his previous life was a scripture-lecturing monk, whereupon he went to Lingyin to leave home, taking the name Jiankong.