Hajjaj bin al-Minhal حجاج بن المنهال · The Book of Fasting

"Allah, may He be blessed and exalted, says: 'Fasting is for me and I shall reward for it. The fasting person has two moments of joy: When he breaks his fast and when he meets his Lord.' By the One in whose hand is my soul, the smell that comes from the mouth of the fasting person is better before Allah than the fragrance of musk." '

"Which deed is best?" he said: "Take to fasting, for there is nothing equal to it."

"I said: 'O Messenger of Allah, tell me of an action (I should do).' He said: 'Take to fasting, for there is nothing equal to it."'

"The Messenger of Allah said to me: 'Fast one day and you will have the reward of ten.' I said: 'Let me fast more.' He said: 'Fast two days and you will have the reward of nine.' I said: 'Let me fast more than that.' He said: 'Fast three days and you will have the reward of eight." (One of the narrators) Thabit said: "I mentioned that to Mutarrif and he said: 'I only see that he is making more…

" I heard the Messenger of Allah say: 'The month of patience ( Ramadan) and three days of each month is fasting for a lifetime."' (Sahih).