Mu'adh ibn Jabal · The Book of Fasting

"For every good deed that the son of Adam does, he will have (the reward of) ten the like thereof, except for fasting. It is for Me and I shall reward for it.

"Raja bin Haiwah narrated that Abu Umamah said: 'I came to the Messenger of Allah and said: Tel l me of something that I may take (learn) from you. He said: "Take to fasting, for there is nothing like it."' '

"Abu Umamah Al-Bahili narrated to me: 'I said: O Messenger of Allah, tell me of something by which Allah will benefic me. He said: Take to fasting, for there is nothing like it."'