Sunan Ibn Majah 645
سنن ابن ماجه#645Da'ifIt was narrated that Jasrah said:"Umm Salamah told me: 'The Messenger of Allah entered the courtyard of this mosque and called out at the top of his voice: 'The mosque is not permissible for anyone who is sexually impure or any woman who is menstruating
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniDaif
Muhammad Fouad Abd al-BaqiDaif
Shuaib Al ArnautDaif
Zubair Ali ZaiDaif
In-book reference: 1:379