Narrated Um Habiba:

I said, "O Allah's Apostle! Do you like to have (my sister) the daughter of Abu Sufyan?" The Prophet ﷺ said, "What shall I do (with her)?" I said, "Marry her." He said, "Do you like that?" I said, "(Yes), for even now I am not your only wife, so I like that my sister should share you with me." He said, "She is not lawful for me (to marry)." I said, "We have heard that you want to marry." He said, "The daughter of Um Salama?" I said, "Yes." He said, "Even if she were not my stepdaughter, she should be unlawful for me to marry, for Thuwaiba suckled me and her father (Abu Salama). So you should neither present your daughters, nor your sisters, to me."

حَدَّثَنَا الْحُمَيْدِيُّ، حَدَّثَنَا سُفْيَانُ، حَدَّثَنَا هِشَامٌ، عَنْ أَبِيهِ، عَنْ زَيْنَبَ، عَنْ أُمِّ حَبِيبَةَ، قَالَتْ قُلْتُ يَا رَسُولَ اللَّهِ هَلْ لَكَ فِي بِنْتِ أَبِي سُفْيَانَ قَالَ " فَأَفْعَلُ مَاذَا ". قُلْتُ تَنْكِحُ. قَالَ " أَتُحِبِّينَ ". قُلْتُ لَسْتُ لَكَ بِمُخْلِيَةٍ، وَأَحَبُّ مَنْ شَرِكَنِي فِيكَ أُخْتِي. قَالَ " إِنَّهَا لاَ تَحِلُّ لِي ". قُلْتُ بَلَغَنِي أَنَّكَ تَخْطُبُ. قَالَ " ابْنَةَ أُمِّ سَلَمَةَ ". قُلْتُ نَعَمْ. قَالَ " لَوْ لَمْ تَكُنْ رَبِيبَتِي مَا حَلَّتْ لِي، أَرْضَعَتْنِي وَأَبَاهَا ثُوَيْبَةُ، فَلاَ تَعْرِضْنَ عَلَىَّ بَنَاتِكُنَّ وَلاَ أَخَوَاتِكُنَّ ". وَقَالَ اللَّيْثُ حَدَّثَنَا هِشَامٌ دُرَّةُ بِنْتُ أَبِي سَلَمَةَ.