Sunan Abi Dawud 566
سنن أبي داود#566Sahihحَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، حَدَّثَنَا حَمَّادٌ، عَنْ أَيُّوبَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ تَمْنَعُوا إِمَاءَ اللَّهِ مَسَاجِدَ اللَّهِ " .
Ibn ‘Umar reported the Messenger of Allah (May peace be upon him) as saying; Do not prevent the female servant your women from visiting the mosques of Allah
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-AlbaniDaif
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (900) Sahih Muslim (442)
In-book reference: 2:176