Huang-Po ; In Jap. Ōbaku: d. 850. A pupil two generations removed from the Sixth Patriarch Huineng, Huang-Po was the Zen Master of Rinzai (q.v.) and so in some sense the founder of that 8[School of Zen]].
Some of Huang-Po’s teaching was recorded by P’ei Hsiu as The Zen Teaching of Huang-Po on the Transmission of Mind, for which see trans. by John Blofeld, 1958.