(Imām Bukhārī narrates): Abdullah bin Yusuf narrated to us, he said: Imam Malik informed us, from Hisham bin Urwah, from his father, from Zainab bint Abi Salamah, from Hazrat Umm Salamah, Mother of the Believers (may Allāh be pleased with her), she says that

Hazrat Abu Talha's wife, Hazrat Umm Sulaim (may Allāh be pleased with her), came to the Messenger of Allāh ﷺ, and she said: O Messenger of Allāh! Indeed Allāh the Exalted is not shy of the truth; is ghusl obligatory upon a woman too, when she has a wet dream? The Messenger of Allāh ﷺ said: Yes! When she sees (the discharge of) water.