"The Prophet prohibited marrying a woman along with her paternal aunt or along with her maternal aunt."
Jami` at-Tirmidhi Book 11, Hadith 47
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Jami` at-Tirmidhi Book 11, Hadith 46 Next Hadith → "The Messenger of Allah prohibited that a woman be married along with her paternal aunt, or the paternal aunt along with her brother's daughter, or a woman with her maternal aunt, or the maternal aunt along with her sister's daughter, and the younger is not to be married with the older, nor the older with the younger."

Jami` at-Tirmidhi Book 11, Hadith 48