Narrated 'Ali: I got an old she-camel as my share from the booty, and the Prophet had given me another from Al-Khumus. And when I intended to marry Fatima (daughter of the Prophet), I arranged that a goldsmith from the tribe of Bani Qainuqa' would accompany me in order to bring Idhkhir and then sell it to the goldsmiths and use its price for my marriage banquet.

Sahih Bukhari : Sales and Trade [34:302]