Hisham b. Zaid quoted Anas as saying that he went to visit the Prophet when he was in an enclosure and saw him branding sheep. He thought he said it was on their ears. (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الصيد والذبائح / 4080
Hadith Gradingالألبانی:مُتَّفَقٌ عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (5542) ومسلم (115/ 2119)»