(50) باب تَحْرِيمِ بِنْتِ الأَخِ مِنَ الرَّضَاعَةِ .
It was narrated from Ibn 'Abbas that the daughter of Hamzah was suggested to Messenger of Allah (as a potential wife). He said:
"She is the daughter of my brother through breast-feeding, and what becomes unlawful (for marriage) through breast-feeding is the same as that which becomes unlawful through lineage."
Reference: Sunan an-Nasa'i 3306
In-book reference: Book 26, Hadith 111
English translation: Vol. 4, Book 26, Hadith 3308