When Ali married Fatimah, the Prophet (ﷺ) said to him: Give her something. He said: I have nothing with me. He said: Where is your Hutamiyyah (coat of mail).
Sunan Abi Dawud Book 12, Hadith 80
← Previous Hadith When a man who has a wife married a virgin he should stay with her seven nights ; if he marries to a woman who has been previously married he should stay with her three nights. (The narrator said:) If I say that he (Anas) narrated this tradition from the Prophet (ﷺ) I shall be true. But he said: The Sunnah is so-and-so.

Sunan Abi Dawud Book 12, Hadith 79 Next Hadith → 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.

Sunan Abi Dawud Book 12, Hadith 81