Mishkat al-Masabih 13 Marriage كتاب النكاح 24

وَعَن جَابِرٍ: أَنَّ أُمَّ سَلَمَةَ اسْتَأْذَنَتْ رَسُولَ اللَّهِ فِي الْحِجَامَةِ فَأَمَرَ أَبَا طَيْبَةَ أَنْ يَحْجُمَهَا قَالَ: حَسِبْتُ أَنَّهُ كَانَ أَخَاهَا مِنَ الرَّضَاعَةِ أَو غُلَاما لم يَحْتَلِم. رَوَاهُ مُسلم

Jabir said that Umm Salama asked permission of God’s Messenger to be cupped and he ordered Abu Taiba to cup her. He said he thought he was her foster-brother, or a lad who had not reached the age of puberty. Muslim transmitted it.