宏智禪師廣錄 2.109

2.109

舉曹山問德上座。佛真法身。猶若虛空。應物現形。如水中月。作麼生說箇應底道理。德云。如驢覷井。山云。道即太殺道。只道得八成。德云。和尚又如何。山云。如井覷驢。頌曰。

Caoshan asked Senior Monk De: "The Buddha's true Dharma-body is like empty space; responding to things, it manifests forms like the moon in water. How do you explain this principle of responding?" / De said: "Like a donkey looking into a well." / Caoshan said: "You have said a great deal, but you have only said eighty percent." / De said: "What about the Venerable?" / Caoshan said: "Like a well looking at a donkey." / The verse says: