كتاب النكاح
16  
The Book of Marriage
(4)
Chapter: The prohibition of being married to a woman and her paternal aunt or maternal aunt at the same time
(4)
باب تَحْرِيمِ الْجَمْعِ بَيْنَ الْمَرْأَةِ وَعَمَّتِهَا أَوْ خَالَتِهَا فِي النِّكَاحِ ‏‏
Sahih Muslim 1408 g

Abu Huraira (Allah be pleased with him) reported Allah's Apostle (ﷺ) as saying:

A man must not make proposal of marriage to a woman when his brother has done so already. And he must not offer a price for a thing for which his brother had already offered a price; and a woman must not be combined in marriage with her father's sister, nor with her mother's sister, and a woman must not ask to have her sister divorced in order to deprive her of what belongs to her, but she must marry, because she will have what Allah has decreed for her.
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ هِشَامٍ، عَنْ مُحَمَّدِ بْنِ سِيرِينَ، عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏ "‏ لاَ يَخْطُبُ الرَّجُلُ عَلَى خِطْبَةِ أَخِيهِ وَلاَ يَسُومُ عَلَى سَوْمِ أَخِيهِ وَلاَ تُنْكَحُ الْمَرْأَةُ عَلَى عَمَّتِهَا وَلاَ عَلَى خَالَتِهَا وَلاَ تَسْأَلُ الْمَرْأَةُ طَلاَقَ أُخْتِهَا لِتَكْتَفِئَ صَحْفَتَهَا وَلْتَنْكِحْ فَإِنَّمَا لَهَا مَا كَتَبَ اللَّهُ لَهَا ‏"‏ ‏.‏
Reference : Sahih Muslim 1408g
In-book reference : Book 16, Hadith 45
USC-MSA web (English) reference : Book 8, Hadith 3274
  (deprecated numbering scheme)