汾陽無德禪師語錄 2.42

2.42

Whenever Zhaozhou saw a monk arrive, he would ask, "Have you been here before?"
The monk said, "I have not been here."
Zhaozhou said, "Go drink tea."
Another said, "I have been here."
Zhaozhou also said, "Go drink tea."
The monastery director asked, "To one who has not been here, you say 'Go drink tea'; why also say 'Go drink tea' to one who has been here?"
Zhaozhou called out, "Director!"
The director answered.
Zhaozhou said, "Go drink tea."