Dajian Huineng (Ta-chien Hui-neng, Daikan Eno), 638-713. The Thirty-Fourth Ancestor in the Zen Transmission, the Sixth Chinese Ancestor. He appears in Records of Silence 13 and in Gateless Gate 29. See Dogen's Chiji Shingi. See Denkoroku Chapter 34.

His famous verse:

"Enlightenment is not a tree
and the clear mirror stands nowhere.
From the beginning not one thing,
where can dust alight."