Ja'far bin Muhammad bin Ali narrates from his father that the Messenger of Allah (peace and blessings be upon him) sent Amr bin Umayyah al-Damri to the Negus so that he might convey a marriage proposal on behalf of the Messenger of Allah (peace and blessings be upon him) to Sayyidah Umm Habibah bint Abi Sufyan (may Allah be pleased with her). At that time she had been married to Ubaydullah bin Jahsh. So the Negus married her (to him) and, from his own resources, paid her dowry of four hundred dinars on behalf of the Messenger of Allah (peace and blessings be upon him). Abu Ja'far Muhammad bin Jarir says: We think that when Abd al-Malik bin Marwan fixed the dowry of women at four hundred dinars, it was in following this very event.