Sahih al-Bukhari 73:30
Narrated Salim:
`Abdullah bin `Umar said, "Allah's Messenger (ﷺ) said, "Eat of the meat of sacrifices (of `Id al Adha) for three days." When `Abdullah departed from Mina, he used to eat (bread with) oil, lest he should eat of the meat of Hadi (which is regarded as unlawful after the three days of the `Id).
Reference
Sahih al-Bukhari 73:30
In-book reference
Book 73, Hadith 30
Arabic Text
حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ الرَّحِيمِ، أَخْبَرَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ بْنِ سَعْدٍ، عَنِ ابْنِ أَخِي ابْنِ شِهَابٍ، عَنْ عَمِّهِ ابْنِ شِهَابٍ، عَنْ سَالِمٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ ـ رضى الله عنهما ـ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " كُلُوا مِنَ الأَضَاحِيِّ ثَلاَثًا ". وَكَانَ عَبْدُ اللَّهِ يَأْكُلُ بِالزَّيْتِ حِينَ يَنْفِرُ مِنْ مِنًى، مِنْ أَجْلِ لُحُومِ الْهَدْىِ.