Sahih Bukhari Volume 7, Book 70, Hadith 5425

حَدَّثَنَا خَلاَّدُ بْنُ يَحْيَى، حَدَّثَنَا سُفْيَانُ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ عَابِسٍ، عَنْ أَبِيهِ، قَالَ قُلْتُ لِعَائِشَةَ أَنَهَى النَّبِيُّ صلى الله عليه وسلم أَنْ تُؤْكَلَ لُحُومُ الأَضَاحِيِّ فَوْقَ ثَلاَثٍ قَالَتْ مَا فَعَلَهُ إِلاَّ فِي عَامٍ جَاعَ النَّاسُ فِيهِ، فَأَرَادَ أَنْ يُطْعِمَ الْغَنِيُّ الْفَقِيرَ، وَإِنْ كُنَّا لَنَرْفَعُ الْكُرَاعَ فَنَأْكُلُهُ بَعْدَ خَمْسَ عَشْرَةَ‏.‏ قِيلَ مَا اضْطَرَّكُمْ إِلَيْهِ فَضَحِكَتْ قَالَتْ مَا شَبِعَ آلُ مُحَمَّدٍ صلى الله عليه وسلم مِنْ خُبْزِ بُرٍّ مَأْدُومٍ ثَلاَثَةَ أَيَّامٍ حَتَّى لَحِقَ بِاللَّهِ‏.‏ وَقَالَ ابْنُ كَثِيرٍ أَخْبَرَنَا سُفْيَانُ حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ عَابِسٍ بِهَذَا‏

Narrated By 'Abis : I asked 'Aisha "Did the Prophet forbid eating the meat of sacrifices offered on 'Id-ul-Adha for more than three days" She said, "The Prophet did not do this except in the year when the people were hungry, so he wanted the rich to feed the poor. But later we used to store even a trotter of a sheep to eat it fifteen days later." She was asked, "What compelled you to do so?" She smiled and said, "The family of Muhammad did not eat to their satisfaction white bread with meat soup for three successive days till he met Allah."