When Ali married Fatimah, daughter of the Messenger of Allah (ﷺ), he intended to have intercourse with her. The Messenger of Allah (ﷺ) prohibited him to do so until he gave her something. Ali said: I have nothing with me, Messenger of Allah. The Prophet (ﷺ) said: Give her your coat of mail. So he gave her his coat of mail, and then cohabited with her.