Sunan Ibn Majah 1929
سنن ابن ماجه#1929SahihIt was narrated from Abu Hurairah: that the Prophet said: “A woman should not be married to a man who is married to her paternal aunt of maternal aunt (at the same time).”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
In-book reference: 9:85