Whoever agrees with a Muslim to cancel a transaction Allah will forgive his sins on the Day of Resurrection. "  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ أَقَالَ مُسْلِمًا أَقَالَهُ اللَّهُ عَثْرَتَهُ يَوْمَ الْقِيَامَةِ