“Whoever fasts six days after the Fitr will have completed the year, for whoever does a good deed will have the reward of ten like it.”
عَنْ ثَوْبَانَ مَوْلَى رَسُولِ اللَّهِ ﷺ عَنْ رَسُولِ اللَّهِ ﷺ أَنَّهُ قَالَ مَنْ صَامَ سِتَّةَ أَيَّامٍ بَعْدَ الْفِطْرِ كَانَ تَمَامَ السَّنَةِ {مَنْ جَاءَ بِالْحَسَنَةِ فَلَهُ عَشْرُ أَمْثَالِهَا}