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ahmad:5158 – Yaḥyá > ʿUbaydullāh > Nāfiʿ > Ibn ʿUmar

[Machine] From the Prophet ﷺ, he said: "Every transaction consists of two options, and one of them is upon the owner with the best choice until they separate or it becomes a better choice."  

أحمد:٥١٥٨ – حَدَّثَنَا يَحْيَى عَنْ عُبَيْدِ اللهِ أَخْبَرَنِي نَافِعٌ عَنِ ابْنِ عُمَرَ

عَنِ النَّبِيِّ ﷺ قَالَ كُلُّ بَيِّعَيْنِ فَأَحَدُهُمَا عَلَى صَاحِبِهِ بِالْخِيَارِ حَتَّى يَتَفَرَّقَا أَوْ يَكُونَ خِيَارًا  

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Collected by Ibn Ḥibbān

ذِكْرُ الْبَيَانِ بِأَنَّ قَوْلَهُ ﷺ «فَإِنْ فَارَقَهُ فَلَا خِيَارَ لَهُ»، أَرَادَ بِهِ فِي غَيْرِ بَيْعِ الْخِيَارِ

ibnhibban:4916 – ʿUmar b. Saʿīd b. Sinān > Aḥmad b. Abū Bakr > Mālik > Nāfiʿ > Ibn ʿUmar

Messenger of Allah ﷺ said, "Both the buyer and the seller have the option of canceling or confirming a bargain unless they separate, or the sale is optional." (See Hadith No.320). (Using translation from Bukhārī 2111)  

ابن حبّان:٤٩١٦ – أَخْبَرَنَا عُمَرُ بْنُ سَعِيدِ بْنِ سِنَانٍ أَخْبَرَنَا أَحْمَدُ بْنُ أَبِي بَكْرٍ عَنْ مَالِكٍ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «الْمُتَبَايعَانِ كُلُّ وَاحِدٍ مِنْهُمَا عَلَى صَاحِبِهِ بِالْخِيَارِ مَا لَمْ يَتَفَرَّقَا إِلَّا بَيْعَ الْخِيَارِ»