Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
tabarani:19355ʿAlī b. ʿAbd al-ʿAzīz > al-Zubayr b. Bakkār

[Machine] And Um Kulthum, the daughter of the Messenger of Allah ﷺ, was with Utaybah bin Abi Lahab, who was eaten by a lion. When Ruqayyah passed away, the Messenger of Allah ﷺ married Um Kulthum to Uthman. She passed away while married to him and did not have any children for him. The Prophet ﷺ said to him, "If I had ten, I would have married them to you."  

الطبراني:١٩٣٥٥حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ الْعَزِيزِ حَدَّثَنَا الزُّبَيْرُ بْنُ بَكَّارٍ قَالَ

وَكَانَتْ أُمُّ كُلْثُومٍ بِنْتُ رَسُولِ اللهِ ﷺ عِنْدَ عُتَيْبَةَ بْنِ أَبِي لَهَبٍ الَّذِي أَكَلَهُ الْأَسَدُ فَفَارَقَهَا وَلَمَّا تُوُفِّيَتْ رُقْيَةُ عِنْدَ عُثْمَانَ زَوَّجَهُ رَسُولُ اللهِ ﷺ أُمَّ كُلْثُومٍ فَتُوُفِّيَتْ عِنْدَهُ وَلَمْ تَلِدْ لَهُ شَيْئًا وَقَالَ لَهُ النَّبِيُّ ﷺ «لَوْ كَانَ لِي عَشْرٌ لَزَوَّجْتُكَهُنَّ»