Wedlock, Marriage (Nikaah)
Ṣaḥīḥ al-Bukhārī 5107
فَوَاللَّهِ لَوْ لَمْ تَكُنْ فِي حَجْرِي مَا حَلَّتْ لِي إِنَّهَا لاَبْنَةُ أَخِي مِنَ الرَّضَاعَةِ، أَرْضَعَتْنِي وَأَبَا سَلَمَةَ ثُوَيْبَةُ فَلاَ تَعْرِضْنَ عَلَىَّ بَنَاتِكُنَّ وَلاَ أَخَوَاتِكُنَّ
fa-wallāh law lam takun fī ḥajrī mā ḥallat lī innahā lābnah akhī mina ar-raḍāʿah, arḍaʿatnī wa-abā salamaha thuwaybah falā taʿriḍna ʿalāa banātikunna walā akhawātikunna
Transliteration generated from the Arabic vowel marks
The full narration
Narrated Um Habiba:I said, "O Allah's Messenger (ﷺ)! Marry my sister, the daughter of Abu Sufyan." He said, "Do you like that?" I said, "Yes, for even now I am not your only wife; and the most beloved person to share the good with me is my sister." The Prophet (ﷺ) said, "But that is not lawful for me (i.e., to be married to two sisters at a time.)" I said, "O Allah's Messenger (ﷺ)! By Allah, we have heard that you want to marry Durra, the daughter of Abu Salama." He said, "You mean the daughter of Um Salama?" I said, "Yes." He said, "By Allah ! Even if she were not my stepdaughter, she would not be lawful for me to marry, for she is my foster niece, for Thuwaiba has suckled me and Abu Salama; so you should neither present your daughters, nor your sisters to me
Source
Ṣaḥīḥ al-Bukhārī · 5107