Sunan Ibn Majah 1938
سنن ابن ماجه#1938SahihIt was narrated from Ibn 'Abbas: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.”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih - Bukhari And Muslim
In-book reference: 9:94