The greatness of Ramadan therefore lies in the opportunity it offers for the development of Taqwa – a virtue that allows us to truly participate in that great cosmic celebration in honor of the revelation of the Quran as a Huda to all people, which is, as mentioned earlier, Ramadan itself. It is a virtue furthermore, that allows us to magnify Allah Ta`ala as He ought to be magnified, namely, with complete awareness of our earthly duties and spiritual vocation; and, therefore, to be of those who are truly thankful to Allah. It is a virtue too, which is ultimately celebrated in the Quran itself, for Allah says: ” The best of you are those who have learnt Taqwa” (49 : 13).
Prescribed fasting in the month of Ramadan is one of the pillars of the Islamic faith. No proof is required to establish its being obligatory and one denying it goes out of the fold of Islam, because it is obvious like the prescribed prayer, and in respect of anything so evidently established both the learned and the unlettered, the elderly and the young, all stand on an equal footing.
Rajab is from the Sacred months and its days are written on the gates of the Sixth Paradise.