Jami` at-Tirmidhi 1126
جامع الترمذي#1126SahihAbu Hurairah narrated:"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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 11:48