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.