Sahih al-Bukhari 5573
Sahih al-Bukhari · Book 73: Al-Adha Festival Sacrifice (Adaahi) · What may be eaten of the meat of sacrifices and what may be taken as journey food
Narrated Abu `Ubaid:
قَالَ أَبُو عُبَيْدٍ ثُمَّ شَهِدْتُهُ مَعَ عَلِيِّ بْنِ أَبِي طَالِبٍ ، فَصَلَّى قَبْلَ الْخُطْبَةِ، ثُمَّ خَطَبَ النَّاسَ فَقَالَ إِنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَاكُمْ أَنْ تَأْكُلُوا لُحُومَ نُسُكِكُمْ فَوْقَ ثَلاَثٍ. وَعَنْ مَعْمَرٍ عَنِ الزُّهْرِيِّ عَنْ أَبِي عُبَيْدٍ نَحْوَهُ .
(in continuation of above). Then I witnessed (the 'Its) with `Ali bin Abi Talib, and he too offered the `Id prayer before the sermon and then delivered the sermon before the people and said, "Allah's Messenger (ﷺ) has forbidden you to eat the meat of your sacrifices for more than three days."