Case 9: The Gates of Zhaozhou
- Title in Sullivan (2021): The Gates of Zhaozhou
- Title in Cleary and Cleary (1992): Chao Chou’s Four Gates
- Title in Sekida (2005): Jōshū’s Four Gates
- Named characters (in Pinyin):
- Zhaozhou Congshen (778-897)
- Named characters (in Wade-Giles):
- Chao Chou
- Named characters (in Japanese):
- Jōshū
- Other koan collections:
- The True Dharma Eye, Case #46.
- Historical commentaries:
- 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 157, 1973)
- John Daido Loori (contained in The True Dharma Eye, 2005)
- Stefano Mui Barragato (dharma talk)
- Dainin Katagiri (audio dharma talk)
- Ron Hogen Green (audio dharma talk)
- Jay Rinsen Weik (audio dharma talk)
- Kurt Spellmeyer (audio dharma talk 1 and 2)
- Barry Magid (audio dharma talk)
- Sal Gessho Randolph (video dharma talk)
- Yamada Kôun (dharma talk with paywall)
- Scholarly commentary:
- Steven Heine (contained in Like Cats and Dogs, page 138, 2014)