Sunan an-Nasai Book 43, Hadith 4432

أَخْبَرَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ، عَنْ عَبْدِ الرَّحْمَنِ، عَنْ سُفْيَانَ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ عَابِسٍ، عَنْ أَبِيهِ، قَالَ دَخَلْتُ عَلَى عَائِشَةَ فَقُلْتُ أَكَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَنْهَى عَنْ لُحُومِ الأَضَاحِي بَعْدَ ثَلاَثٍ قَالَتْ نَعَمْ أَصَابَ النَّاسَ شِدَّةٌ فَأَحَبَّ رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ يُطْعِمَ الْغَنِيُّ الْفَقِيرَ ثُمَّ قَالَ لَقَدْ رَأَيْتُ آلَ مُحَمَّدٍ صلى الله عليه وسلم يَأْكُلُونَ الْكُرَاعَ بَعْدَ خَمْسَ عَشْرَةَ قُلْتُ مِمَّ ذَاكَ فَضَحِكَتْ فَقَالَتْ مَا شَبِعَ آلُ مُحَمَّدٍ صلى الله عليه وسلم مِنْ خُبْزٍ مَأْدُومٍ ثَلاَثَةَ أَيَّامٍ حَتَّى لَحِقَ بِاللَّهِ عَزَّ وَجَلَّ ‏.‏

It was narrated from 'Abdur-Rahman bin 'Abis that his father said:"I came in to 'Aishah and said: 'Did the Messenger of Allah forbid (eating) the meat of sacrificial animals after three day?' She said: 'Yes Hardship had befallen the people, and the Messenger of Allah wanted the rich to feed the poor.' Then she said: 'I remember the family of Muhammad eating the trotters after fifteen days. I said: 'Why is that" She laughed and said: 'The family of Muhammad never ate their fill of bread and something to go with it, for three days in row, until he met Allah, the Mighty and Sublime,"' (Sahih)