Zhaozhou 14.5:
Chao-chou says, “I’ve seen a hundred, thousand, million beings, and all of them are searching for buddhahood. To find one of them searching for no-mind is rare.”
Zhaozhou 18.2:
Chao-chou says, “What is the Tao like? Master Nan-ch’uan said, ‘The ordinary mind is the Tao.’”
Zhaozhou 26.1:
On several occasions, Chao-chou’s disciples asked him if a dog had the buddha nature. On one occasion he answered, “No.” On another he answered, “Yes.” The difference depended on the disciple and whether Chao-chou perceived the disciple was attached to the phenomenal or to the nuomenal world, to existence or non-existence. Over time, however, Chao-chou’s “no” (wu in Chinese, mu in Japanese) became one of the most popular koans of Zen, and his “yes” was forgotten. It would appear that Subhuti, too, preferred “no” to “yes.”