Shoyoroku - Case 35: Rakuho's Obeisance

Rakuho came to Kassan and without bowing stood facing him. Kassan said,
  "A chicken dwells in the phoenix nest. It's not of the same class. Go away."
Rakuho said,
  "I have come from far away, hearing much about you. Please, Master, I beg
   you to guide me."
Kassan said,
  "Before my eyes there is no you, and here there is no old monk [1]."
Rakuho shouted,
  "Kaatz!"
Kassan said,
  "Stop it, stop it. Don't be so careless and hasty. Clouds and the moon are
   the same; valleys and mountains are different from each other. It is not
   difficult to cut off the tongues of the people under heaven. But how can
   you make a tongueless person speak?"
Rakuho said nothing. Kassan hit him. With this, Rakuho started to obey Kassan.

[1]: I.e., "I."