'Abdul Muttalib bin Rabi'ah bin Al-Harith narrated that The Messenger of Allah (ﷺ) said:
"Indeed, Zakah ought not to be given to the family of Muhammad, it will be like giving them from the impurities of people." In another narration, "It is not lawful for Muhammad or the family of Muhammad(ﷺ). Related by Muslim.
English reference: Book 4, Hadith 667
Arabic reference: Book 4, Hadith 646