عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّهُ عَنْهُ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ الْبَيِّعَانِ بِالْخِيَارِ مِنْ بَيْعِهِمَا مَا لَمْ يَتَفَرَّقَا أَوْ يَكُونَ بَيْعُهُمَا فِي خِيَارٍ
Narrated by Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Both parties involved in a sale have the option to cancel the transaction before they separate, or if their sale is based on choice.