Narrator:Abdullāh ibn ‘Umar
أَخْبَرَنَا عَبْدُ الْحَمِيدِ بْنُ مُحَمَّدٍ، قَالَ حَدَّثَنَا مَخْلَدٌ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرِو بْنِ دِينَارٍ، عَنِ ابْنِ عُمَرَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم
" كُلُّ بَيِّعَيْنِ لاَ بَيْعَ بَيْنَهُمَا حَتَّى يَتَفَرَّقَا إِلاَّ بَيْعَ الْخِيَارِ "
It was narrated from Sufyan, from 'Amr bin Dinar, from Ibn 'Umar, who said:
the Messenger of Allah said: "When two people meet to engage in trade, the transaction between them is not binding until they separate, unless they have chosen to concluded the transaction.
Reported by An-Nasa’i (No. 4477, 4474, 4475, 4476, 4478, 4479), Al-Bukhari (No. 2113), Muslim (No. 1531e) and Ahmad (No. 4884, 5917).