Sayyida Zaynab bint Abu Salama (may Allah be pleased with them) narrates the statement of Sayyida Umm Habibah (may Allah be pleased with her), who said: O Messenger of Allah! Are you interested in marrying“Durrah,”the daughter of Abu Sufyan? The Prophet (peace and blessings be upon him) said:“What should I do?”Sayyida Umm Habibah (may Allah be pleased with her) said: You should marry her. The Prophet (peace and blessings be upon him) asked:“Do you like this?”I replied: I am not your only wife; I wish that my sister also becomes my partner. The Prophet (peace and blessings be upon him) said:“She is not lawful for me.”So I said: I have heard that you are going to send a marriage proposal for Zaynab bint Abu Salama. The Prophet (peace and blessings be upon him) asked:“For the daughter of Umm Salama?”I replied: Yes. The Prophet (peace and blessings be upon him) said:“By Allah! Even if she were not my stepdaughter, she would still not be lawful for me, because both her father and I were suckled by Thuwaibah. Do not present your daughters or sisters to me for marriage.”