the Messenger of Allah ﷺ said, "Allah said, 'All the deeds of Adam's sons (people) are for them, except fasting which is for Me, and I will give the reward for it.'

"Fasting is a shield (protection from the Hellfire and from committing sins). If one of you is fasting, he should avoid sexual relation with his wife and quarreling, and if somebody should fight or quarrel with him, he should say: I am fasting."

"By Him in Whose Hands my soul is, the unpleasant smell coming out from the mouth of a fasting person is better in the sight of Allah than the smell of musk."

"There are two pleasures for the fasting person, one at the time of breaking his fast, and the other at the time when he will meet his Lord; then he will be pleased because of his fasting."  

قَالَ رَسُولُ اللَّهِ ﷺ: «قَالَ اللَّهُ: كُلُّ عَمَلِ ابْنِ آدَمَ لَهُ إِلاَّ الصِّيَامَ، فَإِنَّهُ لِي وَأَنَا أَجْزِي بِهِ۔»

«وَالصِّيَامُ جُنَّةٌ وَإِذَا كَانَ يَوْمُ صَوْمِ أَحَدِكُمْ فَلاَ يَرْفُثْ وَلاَ يَصْخَبْ فَإِنْ سَابَّهُ أَحَدٌ أَوْ قَاتَلَهُ فَلْيَقُلْ إِنِّي امْرُؤٌ صَائِمٌ۔»

«وَالَّذِي نَفْسُ مُحَمَّدٍ بِيَدِهِ، لَخُلُوفُ فَمِ الصَّائِمِ أَطْيَبُ عِنْدَ اللَّهِ مِنْ رِيحِ الْمِسْكِ لِلصَّائِمِ۔»

«فَرْحَتَانِ يَفْرَحُهُمَا إِذَا أَفْطَرَ فَرِحَ وَإِذَا لَقِيَ رَبَّهُ فَرِحَ بِصَوْمِهِ۔»  

The Prophet ﷺ said, "There is a gate in Paradise called Ar-Raiyan, and those who observe fasts will enter through it on the Day of Resurrection and none except them will enter through it. It will be said, 'Where are those who used to observe fasts?' They will get up, and none except them will enter through it. After their entry the gate will be closed and nobody will enter through it."  

عَنِ النَّبِيِّ ﷺ قَالَ: «إِنَّ فِي الْجَنَّةِ بَابًا يُقَالُ لَهُ الرَّيَّانُ: يَدْخُلُ مِنْهُ الصَّائِمُونَ يَوْمَ الْقِيَامَةِ؛ لاَ يَدْخُلُ مِنْهُ أَحَدٌ غَيْرُهُمْ؛ يُقَالُ أَيْنَ الصَّائِمُونَ؟ فَيَقُومُونَ؛ لاَ يَدْخُلُ مِنْهُ أَحَدٌ غَيْرُهُمْ۔ فَإِذَا دَخَلُوا أُغْلِقَ فَلَمْ يَدْخُلْ مِنْهُ أَحَدٌ۔»