Mukhtasar Bukhari

Narrated Abu Huraira (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Allah Almighty says: All the deeds of the son of Adam are for him except fasting; it is for Me and I Myself will reward for it." And at the end (of the hadith), it was said: "The fasting person has two joys: one at the time of breaking his fast, he feels happiness, and the other when he meets his Lord, he will be happy upon seeing the reward of his fasting."