Sahih Muslim Book - 28, Hadith - 4372

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِى شَيْبَةَ حَدَّثَنَا أَبُو أُسَامَةَ أَخْبَرَنَا ابْنُ جُرَيْجٍ أَخْبَرَنِى عَطَاءٌ أَخْبَرَنِى صَفْوَانُ بْنُ يَعْلَى بْنِ أُمَيَّةَ عَنْ أَبِيهِ قَالَ غَزَوْتُ مَعَ النَّبِىِّ -صلى الله عليه وسلم- غَزْوَةَ تَبُوكَ - قَالَ وَكَانَ يَعْلَى يَقُولُ تِلْكَ الْغَزْوَةُ أَوْثَقُ عَمَلِى عِنْدِى - فَقَالَ عَطَاءٌ قَالَ صَفْوَانُ قَالَ يَعْلَى كَانَ لِى أَجِيرٌ فَقَاتَلَ إِنْسَانًا فَعَضَّ أَحَدُهُمَا يَدَ الآخَرِ - قَالَ لَقَدْ أَخْبَرَنِى صَفْوَانُ أَيُّهُمَا عَضَّ الآخَرَ - فَانْتَزَعَ الْمَعْضُوضُ يَدَهُ مِنْ فِى الْعَاضِّ فَانْتَزَعَ إِحْدَى ثَنِيَّتَيْهِ فَأَتَيَا النَّبِىَّ -صلى الله عليه وسلم- فَأَهْدَرَ ثَنِيَّتَهُ.

Safwan bin Ya'la bin Umayyah narrated that his father said: "I went out with the Prophet (s.a.w) on the campaign to Tabuk. He said: 'Ya'la used to say: "That campaign was the best of my deeds, in my view."' 'Ata' said: "Safwan said: 'Ya'la said: "I had a servant who fought with another man and one of them bit the hand of the other" - Safwan said: "He told me which of them bit the other - the one who was bit pulled his hand away from the one who bit him, and pulled out one of his incisors. They came to the Prophet (s.a.w), who dismissed his claim for his tooth."