"O you who believe! Fasting is prescribed for you as it was prescribed for those before you in order that you might learn piety . . . . The month of Ramadan is that wherein was revealed the Qur'an, as a guidance to mankind, and clear proofs of the guidance, and the Criterion. So, whoever among you witnesses the month should fast." [Al-Qur'an 2:183, 185]
"Every deed of the Son of Adam is for himself, except fasting - it is for Me, and I shall reward it." [Muslim, Abu Dawud, Nasa'i, Tirmidhi, Ibn Majah]
"There is not any believer who remains hungry, and abstains from the forbidden things, and does not wrongfully consume the wealth of Muslims, except that Allah will feed him from the fruits of Heaven." [Musnad Abu Hanifah]
"Whoever fasts Ramadan with faith and expectation [of reward], his previous sins are forgiven him." [Bukhari, Muslim, Abu Dawud, Nasa'i]
Rewards of fasting in general
"Fasting is a shield." [Ahmad]
"There is not any servant who fasts a day in the path of Allah, except that Allah will distance him from the Fire by a distance of seventy years." [Bukhari, Muslim]
"Fasting the month of patience and three days of each month remove rancor of the heart." [Ahmad, Bazzar]
Warning against abandoning fasting in Ramadan
"Whoever breaks his fast in Ramadan without a [valid] concession or illness, he cannot repay it, even if he were to fast the rest of his life." [Tirmidhi, Nasa'i, Ibn Majah]
"Every deed of the Son of Adam is for himself, except fasting - it is for Me, and I shall reward it." [Muslim, Abu Dawud, Nasa'i, Tirmidhi, Ibn Majah]
"There is not any believer who remains hungry, and abstains from the forbidden things, and does not wrongfully consume the wealth of Muslims, except that Allah will feed him from the fruits of Heaven." [Musnad Abu Hanifah]
"Whoever fasts Ramadan with faith and expectation [of reward], his previous sins are forgiven him." [Bukhari, Muslim, Abu Dawud, Nasa'i]
Rewards of fasting in general
"Fasting is a shield." [Ahmad]
"There is not any servant who fasts a day in the path of Allah, except that Allah will distance him from the Fire by a distance of seventy years." [Bukhari, Muslim]
"Fasting the month of patience and three days of each month remove rancor of the heart." [Ahmad, Bazzar]
Warning against abandoning fasting in Ramadan
"Whoever breaks his fast in Ramadan without a [valid] concession or illness, he cannot repay it, even if he were to fast the rest of his life." [Tirmidhi, Nasa'i, Ibn Majah]
