How many wet nurses did the Prophet, may God bless him and grant him peace, have?

The Prophet, peace and blessings be upon him, was suckled by four women: his mother Aminah bint Wahb, then Thuwaybah, the freed slave of Abu Lahab, then Halimah bint Abi Dhu’ayb As-Sa’diyah, and finally, a woman from Banu Sa’d who nursed his uncle Hamzah. For this reason, Hamzah was his foster-brother from two perspectives.