وَعَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ;
أَنَّ اَلنَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «اَلْبَائِعُ وَالْمُبْتَاعُ بِالْخِيَارِ حَتَّى يَتَفَرَّقَا، إِلَّا أَنْ تَكُونَ صَفْقَةَ خِيَارٍ، وَلَا يَحِلُّ لَهُ أَنْ يُفَارِقَهُ خَشْيَةَ أَنْ يَسْتَقِيلَهُ»
The Prophet (sallallahu alayhi wa sallam) said: “The two parties (seller and buyer) in a business transaction have a choice (to annul it) until they separated (from one another), unless it is a transaction with the right to annul it attached to it; and it is not allowed for one to separated from the other for fear that he may cancel the deal.”.
Bulugh al-Maram 948, Book 7, Business Transactions, Hadith 59. 1 min read