Sahih Muslim 3440
صحيح مسلم#3440SahihAbu Huraira (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying:One should not combine in marriage a woman with her father's sister, or her mother's sister
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 16:43