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 a

Abu Huraira (Allah be pleased with him) reported Allah's Messenger (may peace upon him) having said this:

One should not combine a woman and her father's sister, nor a woman and her mother's sister in marriage.
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ الْقَعْنَبِيُّ، حَدَّثَنَا مَالِكٌ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ ‏ "‏ لاَ يُجْمَعُ بَيْنَ الْمَرْأَةِ وَعَمَّتِهَا وَلاَ بَيْنَ الْمَرْأَةِ وَخَالَتِهَا‏"‏ ‏.‏
Reference : Sahih Muslim 1408 a
In-book reference : Book 16, Hadith 39
USC-MSA web (English) reference : Book 8, Hadith 3268
  (deprecated numbering scheme)