One of the Mothers of the Believers (may Allah be pleased with her) narrates that the Messenger of Allah (peace and blessings be upon him and his family) used to fast on the 9th of Dhul-Hijjah, the Day of Ashura, and three days of every month, that is, the first Monday and two Thursdays of every month.

Narrated from Sayyida Hafsa (may Allah be pleased with her), she said that the Messenger of Allah (peace and blessings be upon him) never abandoned four practices: fasting on the day of Ashura, fasting during the ten days of Dhul-Hijjah, fasting three days of every month, and performing the two Sunnah units before the Fajr prayer.

Sayyiduna Uqbah bin Amir (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: The Day of Arafah, the Day of Sacrifice, and the Days of Tashreeq are our festivals, the people of Islam, and these are days of eating and drinking.

Narrated by Sayyiduna Abu Hurairah, may Allah be pleased with him: The Messenger of Allah, peace and blessings be upon him, said: Whoever fasts for one day in the way of Allah, Allah Almighty, in return, will distance him from Hell by a distance of seventy years.

Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) has also narrated a similar hadith from the Noble Prophet (peace and blessings of Allah be upon him).

Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that at the place of Marr az-Zahran, food was presented to the Noble Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) said to Sayyiduna Abu Bakr and Sayyiduna Umar (may Allah be pleased with them): "Come close and eat the food." They said: "We are fasting." The Prophet (peace and blessings be upon him) said: "O people! Give mounts to these companions of yours and do their share of the work as well."

Abu Burdah bin Abi Musa Ash'ari (may Allah be pleased with him) narrates that he and Yazid bin Abi Kabsha were together on a journey. Yazid used to fast during the journey. Sayyiduna Abu Burdah (may Allah be pleased with him) said to him: I have heard Sayyiduna Abu Musa Ash'ari (may Allah be pleased with him) narrate many times that the Messenger of Allah (peace and blessings be upon him) said: When a servant becomes ill or is on a journey, he is given the same reward as he used to receive for the deeds he performed while residing and in good health.

It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: When a woman's husband is present, she should not fast even a single day without his permission, except in the month of Ramadan.

It is also narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Noble Prophet, peace and blessings be upon him, said: If I did not fear hardship for my Ummah, I would have commanded that the ‘Isha prayer be performed late, and that the miswak be used with every prayer, and that any woman whose husband is present should not fast even for a single day without his permission, except in the month of Ramadan.

Narrated by Sayyida Umm Hani bint Abi Talib (may Allah be pleased with her), she says: The Messenger of Allah (peace and blessings be upon him) drank a beverage and gave it to me as well. Later, I said: I was fasting, but I could not bear to leave what was left by you. The Prophet (peace and blessings be upon him) said: If this fast was a make-up for Ramadan, then keep one fast in its place, and if it was a voluntary fast, then it is up to you whether you make it up or not.