Sayyiduna Ya'la (may Allah be pleased with him) and his paternal uncle Salamah bin Umayyah (may Allah be pleased with him) narrate that they both set out with the Messenger of Allah (peace and blessings be upon him) on the expedition of Tabuk, and we had a companion of ours with us. A man from among the people fought with him and bit him, so our companion pulled his hand out of his mouth, and part of his mouth (a tooth) fell out. He went to the Messenger of Allah (peace and blessings be upon him) and demanded blood money from him. The Messenger of Allah (peace and blessings be upon him) said: "Does one of you go to his brother and bite him like a stallion camel bites, and then come demanding blood money?" And the Messenger of Allah (peace and blessings be upon him) declared that tooth void (no compensation).
Hadith Referenceالمعجم الكبير للطبراني / باب الياء / 18872