Daibai Bunshu 大梅文守 (Keichō 13 / 1608-02-27 → Shōhō 3 / 1646), early-Edo Japanese Rinzai-Zen master in the Myōshin-ji lineage. Style-name (字) Bun’gan 文巖 (later); dharma-name Bunshu 文守. Posthumous title Jōe Myōkō Butchō Kokushi 定慧明光佛頂國師, conferred by Emperor Reigen 靈元天皇 in Enpō 6 / 1678-03-19 (32 years after Bunshu’s death) at the recommendation of Retired Emperor Go-Mizunoo 後水尾上皇. The recorded sayings give his birth as Keichō 13 / 2 / 27 (1608-04-12 NS) and his death-age as 39 with 20 summer-retreats (= death 1646). Native of an unidentified Kansai locality.
Dharma-heir of 東寔 Gudō Tōshoku 愚堂東寔 (1577–1661), the great Myōshin-ji-line restorer. Founder (開山) of Hōjō-ji 法常寺 at Mount Daibai-zan 大梅山 in Tanba 丹波 (modern Kyōto-fu, founded Kan’ei 18 / 1641 with imperial patronage from Go-Mizunoo) and of the Reigen-an 靈源庵 in north Kyoto, which Retired Emperor Go-Mizunoo later (Kanbun 5 / 1665) personally elevated to Reigen-ji 靈源寺 of Mount Seiryō-zan 清涼山. Daughter of Go-Mizunoo, Princess Bunchi 文智女王 (1619–1697; named Daitsū 大通), took the tonsure under Bunshu and became one of his principal disciples. Other principal heirs: Sekitei Ganjo 石鼎頑如 of Setsugan-ji 雪巖寺 and the lay-disciple Taiō 泰翁居士 (Hōun-in Taiō Sankō Daikoji 法雲院泰翁山公大居士). Pagoda-name Empoku 淵默 (“Profound Silence”) at Oku-yama 屋山, with hair-relics enshrined at Daibai. Aside from his recorded sayings, his works include the Shimon hōzō shū 緇門寶藏集 and a commentary on the Yongming chuijie chu 永明垂誡註.