that the Messenger of was offered the daughter of Hamzah bin 'Abdul-Muttalib in marriage, and he said: “She is the daughter of my brother through breastfeeding, and breastfeeding makes unlawful (for marriage) the same things that blood ties make unlawful.” (Using translation from Ibn Mājah 1938)
أَنَّ النَّبِيَّ ﷺ أُرِيدَ عَلَى بِنْتِ حَمْزَةَ فَقَالَ «إِنَّهَا بِنْتُ أَخِي مِنَ الرَّضَاعَةِ وَإِنَّ اللهَ ﷻ يُحَرِّمُ مِنَ الرَّضَاعِ مَا يُحَرِّمُ مِنَ النَّسَبِ»