Sunan al-Nasa'i
The Book of Oaths (qasamah), Retaliation and Blood Money — Hadith #4778
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا سُفْيَانُ، عَنِ ابْنِ جُرَيْجٍ، عَنْ عَطَاءٍ، عَنْ صَفْوَانَ بْنِ يَعْلَى، عَنْ أَبِيهِ، قَالَ غَزَوْتُ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فِي غَزْوَةِ تَبُوكَ فَاسْتَأْجَرْتُ أَجِيرًا فَقَاتَلَ أَجِيرِي رَجُلاً فَعَضَّ الآخَرُ فَسَقَطَتْ ثَنِيَّتُهُ فَأَتَى النَّبِيَّ صلى الله عليه وسلم فَذَكَرَ لَهُ فَأَهْدَرَهُ النَّبِيُّ صلى الله عليه وسلم .
“I went on the campaign to Tabuk with the Messenger of Allah, and I hired a worker. My hired man fought with another man. The other one bit him, and his front tooth fell out. He went to the Prophet and told him about that, but the Prophet considered it to bin vain.
Chain of Narration (Isnad)