It is narrated from Hazrat Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) freed Hazrat Safiyyah (may Allah be pleased with her) and then married her. The narrator asked Hazrat Anas (may Allah be pleased with him), "O Abu Hamzah! How much was the dowry that the Prophet (peace and blessings be upon him) gave her?" He replied that the Prophet (peace and blessings be upon him) made her freedom itself her dowry and married her on that basis.