"Two trades have the choice as long as until they reach a deal that suits both of them and they confirm it three times. "
أَنَّ نَبِيَّ اللَّهِ ﷺ قَالَ الْبَيِّعَانِ بِالْخِيَارِ حَتَّى يَتَفَرَّقَا أَوْ يَأْخُذَ كُلُّ وَاحِدٍ مِنْهُمَا مِنَ الْبَيْعِ مَا هَوِيَ وَيَتَخَايَرَانِ ثَلاَثَ مَرَّاتٍ