Case 24: Iron Grindstone Liu Walks Away
- Title in Sullivan (2021): The Grinder Walks Away
- Title in Cleary and Cleary (1992): Kuei Shan and Iron Grindstone Liu
- Title in Sekida (2005): Ryūtetsuma the Old Female Buffalo
- Named characters (in Pinyin):
- Liu Tiemo
- Guishan Lingyou (771-853)
- Named characters (in Wade-Giles):
- Lieu (aka Iron Grinder Lieu)
- Kuei Shan
- Named characters (in Japanese):
- Ryūtetsuma
- Isan
- Other koan collections:
- The Book of Equanimity, Case #60.
- Historical commentaries:
- Ikkyū (poem #47, contained in The Kōan: Texts and Contexts in Zen Buddhism, Heine and Wright eds., page 215, 2000)
- Hakuin Ekaku and Tenkei Denson (contained in Secrets of the Blue Cliff Record, Thomas Clearly, 2002)
- Modern commentaries:
- Matthew Juksan Sullivan (contained in The Garden of Flowers and Weeds, 2021)
- Gyomay Kubose (contained in Zen Koans, page 194, 1973)
- Gerry Shishin Wick (contained in The Book of Equanimity, 2005)
- Barry Magid (contained in Nothing is Hidden, Ch. 13, 2013)
- John Daido Loori (dharma talk)
- Melissa Blacker (dharma article)
- Dosho Port (dharma article)
- Dainin Katagiri (audio dharma talk)
- Kathie Fischer (audio dharma talk)
- Jay Rinsen Weik (audio dharma talk)
- Kurt Spellmeyer (audio dharma talk 1 and 2)
- Karin Kempe (audio dharma talk)
- Laurie Senauke (audio dharma talk)
- Geoffrey Shugen Arnold (audio dharma talk)
- Genjo Marinello (audio dharma talk)
- Yamada Kôun (dharma talk with paywall)
- Scholarly commentary:
- Steven Heine (contained in Opening a Mountains, page 64, 2002).