Sunan an-Nasa'i 546
سنن النسائي#546SahihIt was narrated that 'Aishah said:"The women used to pray Subh with the Messenger of Allah (ﷺ), wrapped in their wrappers, then they would return, and no one would recognize them because of the darkness
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 6:53