It was narrated that Anas bin Malik said:
“I heard the Messenger of Allah ﷺ say several times: ‘By the One in Whose Hand is the soul of Muhammad, the family of Muhammad does not have a Sa’ of food grains or a Sa’ of dates.’ And at that time he had nine wives.”

حَدَّثَنَا أَحْمَدُ بْنُ مَنِيعٍ، حَدَّثَنَا الْحَسَنُ بْنُ مُوسَى، أَنْبَأَنَا شَيْبَانُ، عَنْ قَتَادَةَ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ مِرَارًا " وَالَّذِي نَفْسُ مُحَمَّدٍ بِيَدِهِ مَا أَصْبَحَ عِنْدَ آلِ مُحَمَّدٍ صَاعُ حَبٍّ وَلاَ صَاعُ تَمْرٍ " . وَإِنَّ لَهُ يَوْمَئِذٍ تِسْعَ نِسْوَةٍ .