Sunan an-Nasa'i #3312 · The Book of Marriage

Sunan an-Nasa'iIt was narrated that Masruq said
Sunan an-Nasa'i · Book 26 · The Book of Marriage
Sunan an-Nasa'i · كتاب 26 · كتاب النكاح
"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
أَخْبَرَنَا هَنَّادُ بْنُ السَّرِيِّ، فِي حَدِيثِهِ عَنْ أَبِي الأَحْوَصِ، عَنْ أَشْعَثَ بْنِ أَبِي الشَّعْثَاءِ، عَنْ أَبِيهِ، عَنْ مَسْرُوقٍ، قَالَ قَالَتْ عَائِشَةُ دَخَلَ عَلَىَّ رَسُولُ اللَّهِ صلى الله عليه وسلم وَعِنْدِي رَجُلٌ قَاعِدٌ فَاشْتَدَّ ذَلِكَ عَلَيْهِ وَرَأَيْتُ الْغَضَبَ فِي وَجْهِهِ فَقُلْتُ يَا رَسُولَ اللَّهِ إِنَّهُ أَخِي مِنَ الرَّضَاعَةِ ‏.‏ فَقَالَ ‏
"‏ انْظُرْنَ مَا إِخْوَانُكُنَّ - وَمَرَّةً أُخْرَى - انْظُرْنَ مَنْ إِخْوَانُكُنَّ مِنَ الرَّضَاعَةِ فَإِنَّ الرَّضَاعَةَ مِنَ الْمَجَاعَةِ ‏"‏ ‏.‏
Reference : Sunan an-Nasa'i 3312In-book reference : Book 26, Hadith 117