By the One in whose hand is my self, the breath coming out from the mouth of a fasting person is more pleasant to Allah than the scent of musk. He leaves off his desires, food and drink for my sake, so fasting is for me and I will reward for it.

Paradise has a door called Ar-Rayyan. On the Day of Resurrection, it will be said: Where are the fasting people? Come to Ar-Rayyan. When the last of them enters, that door will be closed.