Those who doubt the hereafter, those who deny reckoning, those who dismiss heaven and hell, on what ground do they question the ability of Allah almighty! The hereafter is a fact, the day of reckoning is a fact, heaven and hell is a fact. For those in doubt, soon you will know - hell is in waiting. Allah almighty (in Surah Naba: 1-30) shows the foolishness of their thought and the consequences thereof.