Hadith 8:2338
Abu Bakr narrated to us, he said: Ibn Numayr narrated to us, from Hajjaj, from Ata, who said: The Messenger of Allah (may Allah bless him and grant him peace) marked the sacrificial animals (budn) which he had offered as a gift.
حدثنا أبو بكر قال حدثنا بن نمير عن حجاج عن عطاء قال عرف رسول الله صلى الله عليه وسلم بالبدن التي كان أهدى