(51) باب الْقَدْرِ الَّذِي يُحَرِّمُ مِنَ الرَّضَاعَةِ .
It was narrated that Masruq said:
"Aishah said: 'The Messenger of Allah entered upon me and there was a man sitting with me. He got upset about that, and I saw the anger in his face.' I said: "O Messenger of Allah, he is my brother through breast-feeding." He said: "Be careful who you count as your brothers" --or: "be careful who you count as your brothers through breast-feeding"-- "for the breast-feeding (which makes marriage prohibited) is from hunger." (FR)
Reference (FR): Sunan an-Nasa'i 3312 (FR)
In-book reference (FR): Book 26, Hadith 117 (FR)
English translation (FR): Vol. 4, Book 26, Hadith 3314 (FR)