Sekito Kisen
he thirty-fifth patriarch, Great Master Wu-chi, visited Ch'ing-yuan. Ch'ing-yuan asked, "Where are you from?" The master replied, "I come from Ts'ao-ch'i." Ch'ing-yuan then raised his hossu and asked, "Does this exist at Ts'ao-chi?" The master answered, "It's not only nonexistent at Ts'ao-ch'i, but it doesn't exist in India either." Ch'ing-yuan asked him, "You haven't been to India yet, have you?" The master said, "If I went, it would exist." Ch'ing-yuan said, "That's not good enough; say more." The master replied, "Master, you should say half of it and not depend completely on me." Ch'ing-yuan said, "I don't refuse to speak to you, but I am afraid that after this, no one will be deeply awakened." The master said, "It's not that it will not exist, it's just that no one will be able to express it." Ch'ing-yuan hit him with the hossu and the master was greatly awakened.
(texte extrait du Dentoroku)