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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai-kubra:6016 – Muḥammad b. ʿAlī b. Ḥarb > Muḥriz b. al-Waḍḍāḥ > Ismāʿīl > Nāfiʿ > Ibn ʿUmar

"The Messenger of Allah said: 'The two parties to a transaction both have the choice so long as they have not separated, unless they have both chosen to conclude they transaction. If they have both chosen to conclude the transaction, then the transaction is binding." (Sahih ) (Using translation from Nasāʾī 4467)  

الكبرى للنسائي:٦٠١٦ – أَخْبَرَنَا مُحَمَّدُ بْنُ عَلِيِّ بْنِ حَرْبٍ قَالَ حَدَّثَنَا مُحْرِزُ بْنُ الْوَضَّاحِ عَنْ إِسْمَاعِيلَ عَنْ نَافِعٍ عَنْ ابْنِ عُمَرَ قَالَ

قَالَ رَسُولُ اللهِ ﷺ «الْمُتَبَايِعَانِ بِالْخِيَارِ مَا لَمْ يَتَفَرَّقَا إِلَّا أَنْ يَكُونَ الْبَيْعُ كَانَ عَنْ خِيَارٍ فَإِنْ كَانَ الْبَيْعُ عَنْ خِيَارٍ فَقَدْ وَجَبَ الْبَيْعُ»  

See similar narrations below:

Collected by Nasāʾī, Nasāʾī's Kubrá, Suyūṭī
nasai:4467 – Muḥammad b. ʿAlī al-Marwazī > Muḥriz b. al-Waḍḍāḥ > Ismāʿīl > Nāfiʿ > Ibn ʿUmar

"The Messenger of Allah said: 'The two parties to a transaction both have the choice so long as they have not separated, unless they have both chosen to conclude they transaction. If they have both chosen to conclude the transaction, then the transaction is binding." (Sahih )  

النسائي:٤٤٦٧ – أَخْبَرَنَا مُحَمَّدُ بْنُ عَلِيٍّ الْمَرْوَزِيُّ قَالَ حَدَّثَنَا مُحْرِزُ بْنُ الْوَضَّاحِ عَنْ إِسْمَاعِيلَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ الْمُتَبَايِعَانِ بِالْخِيَارِ مَا لَمْ يَفْتَرِقَا إِلاَّ أَنْ يَكُونَ الْبَيْعُ كَانَ عَنْ خِيَارٍ فَإِنْ كَانَ الْبَيْعُ عَنْ خِيَارٍ فَقَدْ وَجَبَ الْبَيْعُ  

nasai:4468 – ʿAlī b. Maymūn > Sufyān > Ibn Jurayj > Amlá ʿAla Nāfiʿ > Ibn ʿUmar

"Nafi dictated to me, from Ibn 'Umar who said: The Messenger of Allah said: 'the two parties to a transaction both have the choice so long as they have not separated, unless they have both chosen to conclude the transaction. If they have both chosen to conclude the transaction, then the transactions binding." (Sahih )  

النسائي:٤٤٦٨ – أَخْبَرَنَا عَلِيُّ بْنُ مَيْمُونٍ قَالَ حَدَّثَنَا سُفْيَانُ عَنِ ابْنِ جُرَيْجٍ قَالَ أَمْلَى عَلَىَّ نَافِعٌ عَنِ ابْنِ عُمَرَ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا تَبَايَعَ الْبَيِّعَانِ فَكُلُّ وَاحِدٍ مِنْهُمَا بِالْخِيَارِ مِنْ بَيْعِهِ مَا لَمْ يَفْتَرِقَا أَوْ يَكُونَ بَيْعُهُمَا عَنْ خِيَارٍ فَإِنْ كَانَ عَنْ خِيَارٍ فَقَدْ وَجَبَ الْبَيْعُ  

nasai-kubra:6017 – ʿAlī b. Maymūn al-Raqqī > Sufyān > Ibn Jurayj > Amlá ʿAlay Nāfiʿ > Ibn ʿUmar

"Nafi dictated to me, from Ibn 'Umar who said: The Messenger of Allah said: 'the two parties to a transaction both have the choice so long as they have not separated, unless they have both chosen to conclude the transaction. If they have both chosen to conclude the transaction, then the transactions binding." (Sahih ) (Using translation from Nasāʾī 4468)   

الكبرى للنسائي:٦٠١٧ – أَخْبَرَنَا عَلِيُّ بْنُ مَيْمُونٍ الرَّقِّيُّ قَالَ حَدَّثَنَا سُفْيَانُ عَنِ ابْنِ جُرَيْجٍ قَالَ أَمْلَى عَلَيَّ نَافِعٌ عَنِ ابْنِ عُمَرَ قَالَ

قَالَ رَسُولُ اللهِ ﷺ «إِذَا تَبَايَعَ الْمُبْتَاعَانِ فَكُلُّ وَاحِدٍ مِنْهُمَا بِالْخِيَارِ مِنْ بَيْعِهِ مَا لَمْ يَتَفَرَّقَا أَوْ يَكُونَ بَيْعُهُمَا عَنْ خِيَارٍ فَإِنْ كَانَ عَنْ خِيَارِ فَقَدْ وَجَبَ الْبَيْعُ»  

suyuti:11752a –
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السيوطي:١١٧٥٢a –

"المُتَبَايعانِ بالخيار ما لم يَتَفَرَّقا إِلا أنْ يَكُونَ البَيع عن خيارٍ، فإِنْ كَانَ (البَيع) عن خيارٍ فقد وَجَبَ البَيع" .  

[ن] النسائي عن ابن عمر