Narrated Abu Hurayra (May Allah Be Pleased with him):
Allah’s Messenger (May Allah’s Blessings and Salutations be upon him):
Fasting is a shield (or a screen or shelter from Hellfire). So he (who is fasting) person fasting should avoid sexual relation with his wife and should not behave foolishly; and if somebody fits or abuses him, he should to him twice, “I am fasting.”
The Prophet added, “By Him in Whose Hand my soul is, the smell coming out from the mouth of a person fasting is better with Allah the exalted than the smell of musk. [Allah says] ‘He has left his food, drink and desires for My Sake. The fast is for Me, so I will Rewardd for it, and the reward of good deeds is multiplied ten times.’ “
[Bukhari narrated it.]
 See Fath al-Bari, Volume 5, Page 5
 Although all practices of worship are for Allah, here Allah Singles out fasting because fasting cannot be practiced for the sake of showing off, as nobody can know whether one is fasting or not, except Allah. Therefore, fasting is a pure performance that cannot be blemished with hypocrisy. (Fath Al Bari, Volume 5, Page 10)
The Virtues of Ramadan by Yasir Qadhi
Common Mistakes Made During Ramadan
Common Mistake # 6: Wasting time
The month of Ramadan is a very precious time, so much so that Allaah SWT calls this month ‘Ayyamum Ma’doodaat’ (A fixed number of days). Before we know it, this month of mercy and forgiveness will be over. We should try and spend every moment possible in the worship of Allah so that we can make the most of this blessing. However, there are some of us who waste away their day playing video games, or worse still, watching TV, movies or even listening to music to occupy their mind so that they won’t feel the hunger pangs. Subhaan Allah! Trying to obey Allah by DISOBEYING Him!?
5 ways to avoid Ramadan weight gain
3. Eat consciously
One of the joys of a fasting person is mentioned in the hadith when Allah says in hadith qudsi that a fasting person will have two joys, one when he breaks his fast and one when he meets his lord. There is very little that compares to having fasted all day then sitting in front of a nice spread with every dish you had been fantasizing about, everything from your favorite roasted lamb to cake and cookies. However there is very little that can compare to the amount of self control we must have when faced with such a feast of the eyes and the palette. We must remember that we are hungry because we are Muslims and as Muslims we much keep the Sunnah in mind and in actions. Remember the advice of the Prophet (salallahu alayhi wasalam) was a one-third rule: One-third of the stomach for food, one-third for drink and one-third for air. When we sit and eat to our fill at iftar we violate the sunnah and we violate our bodies. The Messenger of Allah (salallahu alayhi wasalam) said: “A Muslim should never loosen his waist wrapper due to over eating”.
Ramadan is a time in which we are trained in self control. This self control and discipline is not limited to the day. This training during the day extends to all parts of our lives and our behavior. And there is no better time to show the benefit of this training then sitting down to an iftar spread and NOT eating everything in sight,.