Sunan Ibn Majah, Chapter: The Chapters on Dry Ablution

the daughter of Umm Salamah, that her mother Umm Salamah said: "Umm Sulaim came to the Prophet (saw) and asked him about a woman who sees in her dream something like a man sees. He said: 'Yes, if she sees water (discharge), let her take a bath.' I said: 'You have embarrassed the women. Do women experience wet dreams?' The Prophet (saw) said: 'May your hands be rubbed with dust, how else does her child resemble her?'" (Sahih)