a. All the Buddhas and the Buddha’s teachings arise from this sutra. What is this sutra?
b. Abiding nowhere, your heart and mind come forth.
– PZI Miscellaneous Koans, Case 65 (Diamond Sutra)
John Tarrant talks about the bond between Daoism and Chan Zen. See transcription with same name https://www.pacificzen.org/library/knock-on-any-door-daoist-masters-zen-koans/