Puasa adalah untuk Allah dan Allah sendiri yang membalasnya
Imam Nasa'i : 2181أَخْبَرَنِي هِلَالُ بْنُ الْعَلَاءِ قَالَ حَدَّثَنَا أَبِي قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ عَنْ زَيْدٍ عَنْ أَبِي إِسْحَقَ عَنْ عَبْدِ اللَّهِ بْنِ الْحَارِثِ عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍعَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ إِنَّ اللَّهَ تَبَارَكَ وَتَعَالَى يَقُولُ الصَّوْمُ لِي وَأَنَا أَجْزِي بِهِ وَلِلصَّائِمِ فَرْحَتَانِ حِينَ يُفْطِرُ وَحِينَ يَلْقَى رَبَّهُ وَالَّذِي نَفْسِي بِيَدِهِ لَخُلُوفُ فَمِ الصَّائِمِ أَطْيَبُ عِنْدَ اللَّهِ مِنْ رِيحِ الْمِسْكِ
Having reported to me [Hilal bin Al 'Ala] he said : [my father] Narrated to us, he said : hasNarrated to us ['Ubaidullah] from [Zaid] from [Abu Ishaq] from ['Abdullah bin Al Harith] from ['Ali bin Abu Talib] from the Messenger of Allah he said: "Indeed, Allah Tabaraka wa Ta'ala said: "Fasting is for me and I will give him the reward, and for a person who fasts he has two happiness, namely when he breaks the fast and when he meets his Lord, by My soul is in His hands. Truly the smell of a fasting person's mouth is more fragrant in the sight of Allah than the smell of musk oil."
Hadith Corroboration :
Imam Ahmad : 6877, 6897, 7181, 7368, 7456, 8749, 8954, 9337, 9508, 9532, 9643, 9787, 9827, 10136, 10150, 10273, 10274, 10586, 14142
Imam Bukhari : 1761, 1771, 5472, 6938, 6984
Imam Muslim : 1942, 1943, 1944, 1945, 1946
Imam Nasa'i : 2181, 2182, 2183, 2185, 2186, 2187, 2188, 2197, 2198, 2199, 2202, 2203
Imam Ibnu Majah : 1628, 1629, 3813