Sayyiduna Ya'la (may Allah be pleased with him) said: I took part with the Messenger of Allah (peace and blessings be upon him) in the Expedition of Tabuk on an unruly young camel, and this (expedition) was, in my view, among the most reliable of my deeds. I had hired a worker, and my worker fought with a man. That man bit my worker's hand, so my worker pulled his hand out of his mouth, and his (the biter's) tooth broke. He (the biter) brought the case to the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) declared it (compensation for the tooth) forfeit and said: "Should he leave his hand in your mouth for you to chew it as a male camel chews?"
Hadith Referenceالمعجم الكبير للطبراني / باب الياء / 18869