Ahmed bin 'Isa bin Hassan - al-Tastari أحمد بن عيسى بن حسان - التستري · The Book of Fasting

"(Allah says) fasting is for me and I shall reward for it. The fasting person rejoices twice: when he breaks his fast and the day when he meets his Lord. And the smell that come from the mouth of the fasting person is better before Allah than the fragrance of musk." '