Umm Salamah (Allah be pleased with her), the wife of Allah's Apostle (ﷺ) , said: It was said to the Messenger of Allah (ﷺ) : Is not the daughter of Hamza a suitable match for you? Or it was said: Why don't you propose to marry the daughter of Hamza, the son of Abdul Muttalib? Thereupon he said: Hamza is my brother by reason of fosterage.