It wasnarrated that Anas bin Malik said:
"I heard the Messenger ofAllah(ﷺ) say several times: 'By the One in Whose Hand is the soulofMuhammad, the family of Muhammad does not have a Sa' of food grainsor a Sa' of dates.' And at that time he had nine wives."
English reference: Vol. 5, Book 37, Hadith 4147
Arabic reference: Book 37, Hadith 4286