Sunan an-Nasa'i
Sunan an-Nasa'i 4472
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ " إِذَا تَبَايَعَ الرَّجُلاَنِ فَكُلُّ وَاحِدٍ مِنْهُمَا بِالْخِيَارِ حَتَّى يَفْتَرِقَا " . وَقَالَ مَرَّةً أُخْرَى " مَا لَمْ يَتَفَرَّقَا وَكَانَا جَمِيعًا أَوْ يُخَيِّرَ أَحَدُهُمَا الآخَرَ فَإِنْ خَيَّرَ أَحَدُهُمَا الآخَرَ فَتَبَايَعَا عَلَى ذَلِكَ فَقَدْ وَجَبَ الْبَيْعُ فَإِنْ تَفَرَّقَا بَعْدَ أَنْ تَبَايَعَا وَلَمْ يَتْرُكْ وَاحِدٌ مِنْهُمَا الْبَيْعَ فَقَدْ وَجَبَ الْبَيْعُ " .
Ibn Umar reported that the Messenger of Allah said: When two people make a sale, each has the option until they separate. Another time he said: As long as they have not separated and remain together, or until one gives the other the choice. If one gives the other the choice and they agree on that basis, the sale is binding. If they separate after making the sale and neither has canceled it, the sale is binding.