Sunan An-Nasa'i
Hadith #3352
Abdur-Rahman bin 'Awf said:""The Messenger of Allah saw me looking cheerful as I had just got married."" I said: ""I have gotten married to a woman of the Ansar."" He said: ""How much did you give her as a dowry?"" He said: ""A Nawah (five Dirhams) of gold