[Machine] I have an uncle named Hussein Al-Ju'fi. My son, do you know why Uthman is called "Dhun-Nurain"? I said, "I don't know." He said, "Allah has not combined any daughter of a prophet with anyone since He created Adam until the Day of Judgment except for Uthman ibn Affan. That is why he is called 'Dhun-Nurain'." Al-Shafi'i said, "Zainab bint Umm Salamah married Abdullah ibn Zama'ah, and Az-Zubayr ibn Al-Awwam married Asma bint Abu Bakr, and Talha married their sister. They are the sisters of the mothers of the believers. And Abdul Rahman ibn Auf married the daughter of Jash, who is the sister of the mother of the believers, Zainab, daughter of Jash, and this is clear in the narrations. And all of this indicates that the wives of the Prophet ﷺ became mothers of the believers, and their daughters did not become their sisters, nor did their sisters become their aunts. And Allah knows best.  

لِي خَالِي حُسَيْنٌ الْجُعْفِيُّ يَا بُنِيَّ تَدْرِي لِمَ سُمِّيَ عُثْمَانُ ذَا النُّورَيْنِ؟ قُلْتُ لَا أَدْرِي قَالَ لَمْ يَجْمَعِ اللهُ بَيْنَ ابْنَتَيْ نَبِيٍّ مُنْذُ خَلَقَ اللهُ آدَمَ إِلَى أَنْ تَقُومَ السَّاعَةُ لِغَيْرِ عُثْمَانَ بْنِ عَفَّانَ ؓ فَلِذَلِكَ سُمِّيَ ذَا النُّورَيْنِ قَالَ الشَّافِعِيُّ ؓ وَأَنَّ زَيْنَبَ بِنْتَ أُمِّ سَلَمَةَ تَزَوَّجَتْ يَعْنِي عَبْدَ اللهِ بْنَ زَمْعَةَ وَأَنَّ الزُّبَيْرَ بْنَ الْعَوَّامِ تَزَوَّجَ أَسْمَاءَ بِنْتَ أَبِي بَكْرٍ وَأَنَّ طَلْحَةَ تَزَوَّجَ ابْنَتَهُ الْأُخْرَى وَهُمَا أُخْتَا أُمِّ الْمُؤْمِنِينَ وَعَبْدُ الرَّحْمَنِ بْنُ عَوْفٍ تَزَوَّجَ بِنْتَ جَحْشٍ وَهِيَ أُخْتُ أُمِّ الْمُؤْمِنِينَ زَيْنَبَ يَعْنِي ابْنَةَ جَحْشٍ أُمَّ حَبِيبَةَ بِنْتَ جَحْشٍ وَذَلِكَ بَيِّنٌ فِي الْأَحَادِيثِ وَفِي كُلِّ ذَلِكَ دَلَالَةٌ عَلَى أَنَّ أَزْوَاجَ النَّبِيِّ ﷺ صِرْنَ أُمَّهَاتِ الْمُؤْمِنِينَ وَلَمْ تَصِرْ بَنَاتُهُنَّ أَخَوَاتِهِمْ وَلَا أَخَوَاتُهُنَّ خَالِاتِهِمْ وَاللهُ تَعَالَى أَعْلَمُ