Hadith 8:955
Abu Bakr narrated to us, he said: Sufyan ibn 'Uyaynah narrated to us, from 'Abd al-Karim, from Mujahid, from 'Abd al-Rahman ibn Abi Layla, from 'Ali, who said: The Messenger of Allah (may Allah bless him and grant him peace) commanded me to stand by his sacrificial animals (budn), and he commanded me not to give the butcher anything from them. And he said: "We shall give him from our own [possessions]."
حدثنا أبو بكر قال حدثنا سفيان بن عيينة عن عبد الكريم عن مجاهد عن عبد الرحمن بن أبي ليلى عن علي قال أمرني رسول الله صلى الله عليه وسلم أن أقوم على بدنه وأمرني أن لا أعطي الجازر منها شيئا وقال نحن نعطيه من عندنا