When Abu Zur'ah made a business transaction with a man, he gave him the right of option. He then would tell him: Give me the right of option (to annul the bargain). He said: I heard AbuHurayrah say: The Messenger of Allah ﷺ said: Two people must separate only by mutual consent.
كَانَ أَبُو زُرْعَةَ إِذَا بَايَعَ رَجُلاً خَيَّرَهُ قَالَ ثُمَّ يَقُولُ خَيِّرْنِي وَيَقُولُ سَمِعْتُ أَبَا هُرَيْرَةَ يَقُولُ قَالَ رَسُولُ اللَّهِ ﷺ لاَ يَفْتَرِقَنَّ اثْنَانِ إِلاَّ عَنْ تَرَاضٍ