Special Dwellings in Paradise
The Prophet (peace be upon him) said:
"In Paradise there are dwellings whose inside can be seen from the outside, and the outside can be seen from inside. Allah has prepared them for those who feed the hungry, and speak softly and gently, fast continuously and pray at night whilst the people are asleep."
Expiation of Sins
Messenger of Allah said:
"Fasting on the day of Arafah is expiation for two years, the year preceding it and the year following it. Fasting the day of Ashura is expiation for the year preceding it."[Related by "the group," except for al-Bukhari and at-Tirmidhi]
Fasting As a Means of Controlling Desires
Narrated Alqamah: While I was walking with Abdullah he said:
"We were in the company of the Prophet and he said: He who can afford to marry should marry, because it will help him refrain from looking at other women and save his private parts from committing illegal sexual relation; and he who cannot afford to marry is advised to fast, as fasting will diminish his sexual power."[Bukhari]
Fasting As a Means to Control Our Actions & Speech
The true believer who fasts according to what Allah has commanded will be compelled to avoid evil speech and actions, encouraging the believer to be consciously aware of what they are doing and saying at all times during the fast.
It is reported by Abu Hurairah: the Prophet (peace be upon him) said:
"Whoever does not give up forged speech and evil actions, Allah is not in need of his leaving his food and drink (i.e. Allah will not accept his fasting.)"[Bukhari]
And in another Hadith also reported by Abu Hurairah: Allahs Apostle said:
"Fasting is a shield (or a screen or a shelter). So, the person observing fasting should avoid sexual relation with his wife and should not behave foolishly and impudently, and if somebody fights with him or abuses him, he should tell him twice- I am fasting."
The Prophet added,
"By Him in Whose Hands my soul is, the smell coming out from the mouth of a fasting person is better in the sight of Allah than the smell of musk.[Bukhari]
(Allah says about the fasting person), He has left his food, drink and desires for My sake. The fast is for Me. So I will reward (the fasting person) for it and the reward of good deeds is multiplied ten times."
Duaa of a Fasting Person Are Not Rejected
The Prophet (peace and blessings of Allah be upon him) said:
"There are three prayers that are not rejected: the prayer of a father for his child, the prayer of the fasting person and the prayer of the traveler."[Muslim and Bukhari]
May Allah, grant us all the strength of Iman and Taqwa to perform as many voluntary deeds as we can for His sake, Ameen.