(48) باب تَحْرِيمِ الْجَمْعِ بَيْنَ الْمَرْأَةِ وَخَالَتِهَا .
Jabir bin 'Abdullah said:
"The Messenger of Allah forbade taking a woman as a co-wife to her paternal aunt or maternal aunt."
Reference: Sunan an-Nasa'i 3298
In-book reference: Book 26, Hadith 103
English translation: Vol. 4, Book 26, Hadith 3300