When Tozan came to study with Ummon, Ummon asked, 'Where have you come from?' Tozan said, 'From Sato.' Ummon asked, 'Where were you during the summer?' Tozan replied, 'In the Hoji temple in Konan.' Ummon asked, 'When did you leave there?' Tozan answered, 'August twenty-fifth.' Ummon said, 'I spare you three blows.'

— Mumonkan, Case 15

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