Yala said, "I went on the expedition of al-Usrah with the Prophet ﷺ." Yala used to say, "That campaign is the deed I trust most among my works."Ata said, Safwan reported that Yala said, "I had a hired worker who got into a fight with another man. One of them bit the other's hand."Ata said, "Safwan informed me which of them bit the other, but I have forgotten."Yala continued, "The one who was bitten yanked his hand out of the biter's mouth, pulling out one of the biter's front teeth. They both came to the Prophet ﷺ, and he ruled that no compensation was due for the tooth."Ata said, "I think he said that the Prophet ﷺ said, 'Should he leave his hand in your mouth for you to chew on as a stallion chews?'"
غزوت مع النبي ﷺ العسرة قال: كان يعلى يقول: تلك الغزوة أوثق أعمالي عندي. قال عطاء: فقال صفوان: قال يعلى: فكان لي أجير، فقاتل إنسانا فعض أحدهما يد الآخر، قال عطاء: فلقد أخبرني صفوان: أيهما عض الآخر فنسيته، قال: فانتزع المعضوض يده من في العاض، فانتزع إحدى ثنيتيه، فأتياالنبي ﷺ فأهدر ثنيته. قال عطاء: وحسبت أنه قال: قال النبي ﷺ: أفيدع يده في فيك تقضمها، كأنها في في فحل يقضمها.
Bukhari narrated it in "The Military Expeditions" (4417), and Muslim narrated it in "Retribution and Combatants" (23:1674), both through the route of Ibn Jurayj, who said, Ataa told me, Safwan bin Yaala bin Umaya told me, from his father, who said, then he mentioned it.