Hadithcore
Mishkat al-Masabih, 4193

She said Muhammad’s family did not have a full meal of wheaten bread on two successive days, but would have dates on one of them. (Bukhari and Muslim.)

وَعَنْهَا قَالَتْ: مَا شَبِعَ آلُ مُحَمَّدٍ يَوْمَيْنِ مِنْ خُبْزِ بُرٍّ إِلَّا وَأَحَدُهُمَا تمر

References1 variant
In-Book Reference
Book 21, Hadith 32