After Goso Hoen, a disciple of Hakun Shutan, the Zen masters such as Engo Kokugon, Bukkan Egon and Butsugen Seion, who were Hoen's disciples, appeared and were called 'the three Buddha.'
白雲守端の門下に五祖法演が出て、その門弟より、圜悟克勤、仏鑑慧懃、仏眼清遠という、「三仏」と称される禅匠が現われた。