One day after Shigong Huicang had been training for a while, Mazu Daoyi visited him while he was at work in the kitchen. “What are you doing?” the master asked.
“I am tending an ox,” Shigong informed him.
“Are you now? How do you attend to this ox?”
“If it strays from the path, I pull it back by the nose without a moment’s delay.”
“That is certainly how to attend to it,” Mazu admitted.
[Shigong Huicang – Zen Masters of China: 146-48]