Yuan-wu (Engo) (1063–1135)
Yuan-wu was the Dharma Heir of Wu-tsu Fa-yen and compiler of the Blue Cliff Record
) of Koans compiled from the Cases
& verses collected by Hsueh-tou of the Yun-men school. He had three prominent dharma heirs: Hu-kuo, Hu-ch'iu Shao-lung, and Ta-hui.
Hu-ch'iu Shao-lung went on to transmit the line later brought to Japan by Nampo Shomyo.
Ta-hui became fearful that the Hekiganroku
made things too clear and went on a rampage burning every copy he could find as well as destroying the original printing blocks. Later, a lay Buddhist, Chang Ming-yuan gathered together all available copies and reconstructed the original work – published in 1300.
From Zen Lineages
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