Bulugh al-Maram, Book 12, Hadith 1394 (English)

'Ali bin Abi Talib (RAA) narrated, "The Messenger of Allah appointed me to be in charge of his sacrificial animals, and commanded me to distribute all their meat, hides and saddlery to the poor, and not to give anything from them to the butcher." Agreed upon.

وَعَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ ‏- رضى الله عنه ‏- قَالَ: { + أَمَرَنِي اَلنَّبِيُّ ‏- صلى الله عليه وسلم ‏-أَنَّ أَقْوَمَ عَلَى بُدْنِهِ, وَأَنْ أُقَسِّمَ لُحُومَهَا وَجُلُودَهَا وَجِلَالَهَا عَلَى اَلْمَسَاكِينِ, وَلَا أُعْطِيَ فِي جِزَارَتِهَا مِنْهَا شَيْئاً } مُتَّفَقٌ عَلَيْه ِ (1775)‏.‏ ‏3 ‏- صحيح.‏ رواه البخاري ( 1707 )‏، ومسلم ( 1317 )‏ بنحوه.‏

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also referenced under: Book 12, Hadith 1353 (In-Book)