Sunan Abi Dawud 2066
سنن أبي داود#2066Sahihحَدَّثَنَا أَحْمَدُ بْنُ صَالِحٍ، حَدَّثَنَا عَنْبَسَةُ، أَخْبَرَنِي يُونُسُ، عَنِ ابْنِ شِهَابٍ، أَخْبَرَنِي قَبِيصَةُ بْنُ ذُؤَيْبٍ، أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ، يَقُولُ نَهَى رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ يُجْمَعَ بَيْنَ الْمَرْأَةِ وَخَالَتِهَا وَبَيْنَ الْمَرْأَةِ وَعَمَّتِهَا .
Abu Hurairah said “The Apostle of Allah (ﷺ) forbade that a woman and her maternal aunt and a woman and her paternal aunt are joined in marriage (to the same man).”
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiSahih Bukhari (5110) Sahih Muslim (1408)
In-book reference: 12:21