Sahl bin Sa'd As-Sa'idi narrated that:
A woman came to the Messenger of Allah and said: I present myself to you (for marriage). So she stood for a long time. Then a man said: O Messenger of Allah! Marry her to me if you have no need of her. So he said: Do you have anything to give her as a dowry? He said: I have nothing except this Izar. So the Messenger of Allah said: If you give her your Izar then you will have no Izar, so search for something. He said: I did not find anything. He said: Search for something, even if it just an iron ring. He said: So he searched but he did not find anything. The Messenger of Allah said: Do you have any Qur'an (memorized)? He said: Yes. This Surat and that Surat. And he named the Surat. So the Messenger of Allah said: I marry her to you for what you have (memorized) of the Qur'an.