Wedlock, Marriage (Nikaah)
Ṣaḥīḥ al-Bukhārī 5123
أَعَلَى أُمِّ سَلَمَةَ لَوْ لَمْ أَنْكِحْ أُمَّ سَلَمَةَ مَا حَلَّتْ لِي، إِنَّ أَبَاهَا أَخِي مِنَ الرَّضَاعَةِ
aʿalā ummi salamaha law lam ankiḥ umma salamaha mā ḥallat lī, inna abāhā akhī mina ar-raḍāʿah
Transliteration generated from the Arabic vowel marks
The full narration
Narrated Zainab bint Salama:Um Habiba said to Allah's Messenger (ﷺ) "We have heard that you want to marry Durra bint Abu-Salama." Allah's Messenger (ﷺ) said, "Can she be married along with Um Salama (her mother)? Even if I have not married Um Salama, she would not be lawful for me to marry, for her father is my foster brother
Source
Ṣaḥīḥ al-Bukhārī · 5123
Ṣaḥīḥ