On the authority of Abu Hurayrah (may Allah be pleased with him) from the Prophet(may the blessings and peace of Allah be upon him), who said : Allah (Mightty and Sublime be He) says:
Fasting is Mine and it is I who give reward for it. [A man] gives up his sexual passion, his food and his drink for My sake. Fasting is like a sheild, adn he who fasts has two joys; a joy when he breaks his fast and a joy when he meets his Lord. The change in the breath of the mouth of him who fasts is better in Allah's estimation than the smell of musk.
It was related by al-Bukhari (also by Musli, Malik, at-Tirmidhi, an-Nasa'i, and Ibn Majah).
