Sahih al-Bukhari, Hadith 4180 ⓘ

Narrated `Urwa bin Az-Zubair: That he heard Marwan bin Al-Hakam and Al-Miswar bin Makhrama relating one of the events that happened to Allah's Messenger in the `Umra of Al-Hudaibiya. They said, "When Allah's Messenger concluded the truce with Suhail bin `Amr on the day of Al-Hudaibiya, one of the conditions which Suhail bin `Amr stipulated, was his saying (to the Prophet), "If anyone from us (i.e. infidels) ever comes to you, though he has embraced your religion, you should return him to us, and should not interfere between us and him." Suhail refused to conclude the truce with Allah's Messenger except on this condition. The believers disliked this condition and got disgusted with it and argued about it. But when Suhail refused to conclude the truce with Allah's Messenger except on that condition, Allah's Apostle concluded it. Accordingly, Allah's Messenger then returned Abu Jandal bin Suhail to his father, Suhail bin `Amr, and returned every man coming to him from them during that period even if he was a Muslim. The believing women Emigrants came (to Medina) and Um Kulthum, the daughter of `Uqba bin Abi Mu'ait was one of those who came to Allah's Messenger and she was an adult at that time. Her relatives came, asking Allah's Messenger to return her to them, and in this connection, Allah revealed the Verses dealing with the believing (women).

حَدَّثَنِي إِسْحَاقُ، أَخْبَرَنَا يَعْقُوبُ، حَدَّثَنِي ابْنُ أَخِي ابْنِ شِهَابٍ، عَنْ عَمِّهِ، أَخْبَرَنِي عُرْوَةُ بْنُ الزُّبَيْرِ، أَنَّهُ سَمِعَ مَرْوَانَ بْنَ الْحَكَمِ، وَالْمِسْوَرَ بْنَ مَخْرَمَةَ، يُخْبِرَانِ خَبَرًا مِنْ خَبَرِ رَسُولِ اللَّهِ صلى الله عليه وسلم فِي عُمْرَةِ الْحُدَيْبِيَةِ فَكَانَ فِيمَا أَخْبَرَنِي عُرْوَةُ عَنْهُمَا أَنَّهُ لَمَّا كَاتَبَ رَسُولُ اللَّهِ صلى الله عليه وسلم سُهَيْلَ بْنَ عَمْرٍو، يَوْمَ الْحُدَيْبِيَةِ عَلَى قَضِيَّةِ الْمُدَّةِ، وَكَانَ فِيمَا اشْتَرَطَ سُهَيْلُ بْنُ عَمْرٍو أَنَّهُ قَالَ لاَ يَأْتِيكَ مِنَّا أَحَدٌ وَإِنْ كَانَ عَلَى دِينِكَ إِلاَّ رَدَدْتَهُ إِلَيْنَا، وَخَلَّيْتَ بَيْنَنَا وَبَيْنَهُ‏.‏ وَأَبَى سُهَيْلٌ أَنْ يُقَاضِيَ رَسُولَ اللَّهِ صلى الله عليه وسلم إِلاَّ عَلَى ذَلِكَ، فَكَرِهَ الْمُؤْمِنُونَ ذَلِكَ وَامَّعَضُوا، فَتَكَلَّمُوا فِيهِ، فَلَمَّا أَبَى سُهَيْلٌ أَنْ يُقَاضِيَ رَسُولَ اللَّهِ صلى الله عليه وسلم إِلاَّ عَلَى ذَلِكَ، كَاتَبَهُ رَسُولُ اللَّهِ صلى الله عليه وسلم، فَرَدَّ رَسُولُ اللَّهِ صلى الله عليه وسلم أَبَا جَنْدَلِ بْنَ سُهَيْلٍ يَوْمَئِذٍ إِلَى أَبِيهِ سُهَيْلِ بْنِ عَمْرٍو، وَلَمْ يَأْتِ رَسُولَ اللَّهِ صلى الله عليه وسلم أَحَدٌ مِنَ الرِّجَالِ إِلاَّ رَدَّهُ فِي تِلْكَ الْمُدَّةِ، وَإِنْ كَانَ مُسْلِمًا، وَجَاءَتِ الْمُؤْمِنَاتُ مُهَاجِرَاتٍ، فَكَانَتْ أُمُّ كُلْثُومٍ بِنْتُ عُقْبَةَ بْنِ مُعَيْطٍ مِمَّنْ خَرَجَ إِلَى رَسُولِ اللَّهِ صلى الله عليه وسلم وَهْىَ عَاتِقٌ، فَجَاءَ أَهْلُهَا يَسْأَلُونَ رَسُولَ اللَّهِ صلى الله عليه وسلم أَنْ يَرْجِعَهَا إِلَيْهِمْ، حَتَّى أَنْزَلَ اللَّهُ تَعَالَى فِي الْمُؤْمِنَاتِ مَا أَنْزَلَ‏.‏