[Machine] From the Prophet ﷺ, he said: "Every transaction consists of two options, and one of them is upon the owner with the best choice until they separate or it becomes a better choice."
عَنِ النَّبِيِّ ﷺ قَالَ كُلُّ بَيِّعَيْنِ فَأَحَدُهُمَا عَلَى صَاحِبِهِ بِالْخِيَارِ حَتَّى يَتَفَرَّقَا أَوْ يَكُونَ خِيَارًا