Sahih Muslim , Book 42, Hadith 7087 (USC-MSA) ⓘ
'A'isha reported: Never could the family of Muhammad (may peace. be upon him) (afford to eat) the bread of wheat for three (successive days) until he ran the course of his life.
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا حَفْصُ بْنُ غِيَاثٍ، عَنْ هِشَامِ بْنِ عُرْوَةَ، عَنْ أَبِيهِ، قَالَ قَالَتْ عَائِشَةُ مَا شَبِعَ آلُ مُحَمَّدٍ صلى الله عليه وسلم مِنْ خُبْزِ الْبُرِّ ثَلاَثًا حَتَّى مَضَى لِسَبِيلِهِ .
also referenced under: Book 55, Hadith 31 (In-Book) & Hadith 2970 (Reference)