Hadith 586:2
Yahya ibn Sa'id narrated to us, from Ibn Jurayj, who said: 'Ata' informed me, saying: Safwan ibn Ya'la ibn Umayyah informed me, from his father, who said: My hired worker fought with a man and bit his hand. He (the man) pulled his hand out of his (the worker's) mouth, and he (the man) knocked out his (the worker's) front tooth. He came to the Prophet, peace and blessings of Allah be upon him, and he (the Prophet) declared it (the injury) uncompensated (blood-money-free). And he said: "Should he leave his hand in your mouth for you to gnaw upon, just as a stallion gnaws?"
حدثنا يحيى بن سعيد، عن ابن جريج، قال: أخبرني عطاء، قال: أخبرني صفوان بن يعلى بن أمية، عن أبيه، قال: قاتل أجيري رجلا، فعض يده، فنزع يده من فيه، فأندر ثنيته، فأتى النبي صلى الله عليه وسلم فأهدره، وقال: " فيدع يده في فيك تقضمها، كما يقضم الفحل "