Sunan An-Nasai, Chapter: The Book of Purification

that Aisha told him that Umm Sulaim spoke to the Messenger of Allah (saw) when Aisha was sitting there. She said to him: "O Messenger of Allah! Allah is not shy to tell the truth. Inform me: If a woman sees in a dream what men see should she perform Ghusl from that?" The Messenger of Allah (saw) said to her: "Yes." Aisha said: "I expressed my displeasure and said: 'Does a woman see that?' The Messenger of Allah (saw) turned to me and said: 'May your right hand be covered with dust! How else would (her child) resemble her?'" (Sahih)