It was narrated from 'Abdur-Rahman bin 'Amr: "The Messenger of Allah said: 'Whatever is given as a dowry, or gift or is promised her before the marriage belongs to her. Whatever is given after the marriage belongs to the one to whom it was given. And the most deserving for which a (man) is to be honored is (when marrying off) his daughter or sister.'" This is the wording of 'Abdullah (one of the narrators).