The believing women used to pray the morning prayer with the Messenger of Allah and then return wrapped in their mantles. No one could recognise them.
Sahih Muslim Book 5, Hadith 290
← Previous Hadith The Messenger of Allah (ﷺ) said: Let the bedouin not gain upper band over you In regard to the name of your prayer, i. e. night prayer, for it is mentioned 'Isya' in the Book of Allah (i. e. the Qur'an). (The bedouin call it 'Atama because) they make delay in milling their she-camels.

Sahih Muslim Book 5, Hadith 289 Next Hadith → The believing women observed the morning prayer with the Messenger of Allah (ﷺ) wrapped in their mantles. They then went back to their houses and were unrecognisable, because of the Messenger of Allah's (ﷺ) praying in the darkness before dawn.

Sahih Muslim Book 5, Hadith 291