The Book of Marriage
Ṣaḥīḥ Muslim 3438
لاَ تُنْكَحُ الْعَمَّةُ عَلَى بِنْتِ الأَخِ وَلاَ ابْنَةُ الأُخْتِ عَلَى الْخَالَةِ
lā tunkaḥu al-ʿammah ʿalā binti al-akhi walā ābnah al-ukhti ʿalā al-khālah
Transliteration generated from the Arabic vowel marks
The full narration
Abu Huraira (Allah be pleased with him) reported:I heard Allah's Messenger (ﷺ) say: Father's sister should not be combined with her brother's daughter, nor the daughter of a sister with her mother's sister
Source
Ṣaḥīḥ Muslim · 3438
Ṣaḥīḥ