Shoyoroku - Case 60: Tetsuma, the Cow [1]

Ryu Tetsuma [2] came to Isan. Isan said,
  "Old Cow, you have come!"
Tetsuma said,
  "Tomorrow there will be a great feast at Mt. Tai [3]. Will you go there,
   Master?"
Isan lay down and stretched himself out.
Tetsuma left immediately.

[1]: see case 24 of Hekiganroku.
[2]: A famous Zen person, once a student of Isan. Her name means "Ryu, the
     iron grindstone."
[3]: More exactly: Mt. Gotai, which is far away in the northern part of
     the country.