The Book of Transactions
21/10. Chapter:
Affirming that both parties to a transaction have the option (of canceling it) while they are still together
Sahih Muslim
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، و يَحْيَى بْنُ أَيُّوبَ وَقُتَيْبَةُ وَابْنُ حُجْرٍ قَالَ يَحْيَى بْنُ يَحْيَى أَخْبَرَنَا وَقَالَ الآخَرُونَ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ جَعْفَرٍ، عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ، أَنَّهُ سَمِعَ ابْنَ، عُمَرَ يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " كُلُّ بَيِّعَيْنِ لاَ بَيْعَ بَيْنَهُمَا حَتَّى يَتَفَرَّقَا إِلاَّ بَيْعُ الْخِيَارِ " .
Ibn Umar reported Allah's Messenger (ﷺ) as saying: There is no transaction between two persons entering a transaction until they separate, but only when there is an option to annul it.
Reference : Sahih Muslim 1531eIn-book reference : Book 21, Hadith 56USC-MSA web (English) reference : Book 10, Hadith 3660