It is narrated from Abu Uthman that Sayyiduna Abu Hurairah (may Allah be pleased with him) was on a journey. When he stopped at a place, people sent him an invitation to eat, while he was praying. He said: I am fasting. The people set the food, and when they were about to finish, Sayyiduna Abu Hurairah (may Allah be pleased with him) came there. The people again invited him to eat, and this time he started eating. Seeing this situation, the people began to look with surprise at the first messenger, because he was the one who had conveyed the message of fasting. But he said: What are you looking at? By Allah! He had said that he was fasting. At that time, Sayyiduna Abu Hurairah (may Allah be pleased with him) said: He is telling the truth. The matter is that the Messenger of Allah (peace and blessings be upon him) said: The fasts of the month of Ramadan and then three fasts of every month are equal to the fasts of the whole year.)) Acting upon this hadith, I had already kept three fasts at the beginning of this month, so now I am breaking my fast on the basis of Allah’s concession, while I had kept the fast to attain manifold reward from Allah.

It is narrated from Sayyiduna Abu Dharr (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: The fasts of the month of patience, that is, Ramadan, and then three fasts of every month are equal to the fasts of the whole year; through them, the impurity of the chest is removed. I asked: What is meant by the impurity of the chest? He said: The filth of Satan.

Narrated from Sayyiduna Qurrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Fasting three days in every month is (like) fasting for the whole year, and (it is) also breaking the fast for the whole year.

It is narrated from Sayyiduna Uthman bin Abi Al-Aas Thaqafi (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Fasting three days in every month is the best of fasts.

Narrated by Sayyiduna Abu Dharr (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Whoever fasts three days in every month, it is as if he has fasted for the whole year.

Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with him) has also narrated a hadith of the same kind.

It is narrated from Sayyiduna Abu Aqrab, he says: I asked the Noble Prophet (peace and blessings be upon him) about fasting, so he (peace and blessings be upon him) said: Observe one fast every month. I said: O Messenger of Allah! Indeed, I am capable of more than that. He (peace and blessings be upon him) said: I am more capable than that, I am more capable than that, so then observe two fasts every month. I said: O Messenger of Allah! Grant me permission for more than that. The Messenger of Allah (peace and blessings be upon him) said: Grant me permission for more than that, grant me permission for more than that, so then observe three fasts every month.

It is narrated from Sayyida Mu'adhah (may Allah be pleased with her) that Sayyida Aisha (may Allah be pleased with her) stated that the Messenger of Allah (peace and blessings be upon him) used to fast three days every month. Sayyida Mu'adhah (may Allah be pleased with her) asked: Which three days of the month were those? She said: He (peace and blessings be upon him) did not mind which days they were.