Sunan An-Nasa'i

It was narrated from Sahl bin Sa'd that a woman came to the Messenger of Allah and said:""O Messenger of Allah, I give myself in marriage to you."" She stood for a long time, then a man stood up and said: ""Marry her to me if you do not want to marry her."" The Messenger of Allah said: ""Do you have anything?"" He said: ""I cannot find anything."" He said: ""Look (for something), even if it is only an iron ring."" So he looked but he could not find anything. The Messenger of Allah said to him: ""Have you (memorized) anything of the Qur'an?"" He said: ""Yes, Surah such and such and Surah such and such,"" naming them. The Messenger of Allah said: ""I marry her to you for what you know of the Qur'an