Sahih Muslim Book - 13, Hadith - 2707

وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِى شَيْبَةَ حَدَّثَنَا أَبُو مُعَاوِيَةَ وَوَكِيعٌ عَنِ الأَعْمَشِ ح وَحَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ حَدَّثَنَا جَرِيرٌ عَنِ الأَعْمَشِ ح وَحَدَّثَنَا أَبُو سَعِيدٍ الأَشَجُّ - وَاللَّفْظُ لَهُ - حَدَّثَنَا وَكِيعٌ حَدَّثَنَا الأَعْمَشُ عَنْ أَبِى صَالِحٍ عَنْ أَبِى هُرَيْرَةَ - رضى الله عنه - قَالَ قَالَ رَسُولُ اللَّهِ -صلى الله عليه وسلم- « كُلُّ عَمَلِ ابْنِ آدَمَ يُضَاعَفُ الْحَسَنَةُ عَشْرُ أَمْثَالِهَا إِلَى سَبْعِمِائَةِ ضِعْفٍ قَالَ اللَّهُ عَزَّ وَجَلَّ إِلاَّ الصَّوْمَ فَإِنَّهُ لِى وَأَنَا أَجْزِى بِهِ يَدَعُ شَهْوَتَهُ وَطَعَامَهُ مِنْ أَجْلِى لِلصَّائِمِ فَرْحَتَانِ فَرْحَةٌ عِنْدَ فِطْرِهِ وَفَرْحَةٌ عِنْدَ لِقَاءِ رَبِّهِ. وَلَخُلُوفُ فِيهِ أَطْيَبُ عِنْدَ اللَّهِ مِنْ رِيحِ الْمِسْكِ ».

It was narrated that Abu Hurairah [may Allah be pleased with them] said: “The Messenger of Allah said: ‘Every deed of the son of Adam will be multiplied, a Hasanah will be multiplied to ten its like, up to seven hundred times. Allah, the Mighty and Sublime, said: “Except fasting. It is for Me and I shall reward for it. He gives up his desires and his food for My sake.” The fasting person will have two moments of joy: Joy when he breaks his fast, and joy when he meets his Lord. And indeed the smell of his mouth is better to Allah than the fragrance of musk.’”