For example...
For example, a person who drops an atom bomb and blows millions of people away cannot be adequately punished by his death—his full punishment will only come in the next world which is an eternal world. Similarly, there are certain good deeds for which a person cannot be rewarded properly in this world. 2. The Return in Islam Islam has laid most emphasis on the issue of the Return (alma’ad).
More than a thousand verses of the Qur'an refer especially to the Return and life after death, whereas the verses related to the individual and social laws scarcely reach five hundred. The belief in the Return is one of the foundations and basis of Islam. A person who does not believe in the Return and Resurrection cannot and is not considered a Muslim. Now a few verses from the Qur'an on the Return and Resurrection.
On the necessity of .the Return: What, does man reckon that he shall be left to roam at will (after death)? (75:36) We have not created the heavens, the earth, and what is between them for vanity; such is the thought of the unbelievers; wherefore woe unto the unbelievers because of the Fire! Or shall We make those who believe and do righteous deeds same as those who cause corruption in the earth, or shall We make the God-fearing same as the transgressors?
(38:27-28) Do not think that Allah is heedless of what the evildoers do; He is only deferring them to a day when eyes shall stare.
(14:42) On the possibility of the Resurrection: One day Ubayy ibn Khalaf brought some decaying bones before the Prophet and crumbled them in his own hands, saying: 'Who shall quicken these bones when they are decayed?" (36:78) In answer, Allah said, Say, ‘He shall quicken them Who created them the firsttime [from nothing]; He is well-aware of all creations.' Is not He, Who created the heavens and the earth, able to create the life of them? Yes indeed; He is the Perfect Creator, the All-Knowing.
(36:79) On Reward & Punishment: Then as for him uuho was insolent and preferred the life of this world, surely Hell shall be the abode. But as for him who feared the station of his Lord and protected the soul from its caprice, surely the Garden shall be the refuge.
(79:37-41) Whosoever does an evil deed shall be recompensed only with the life of it, but whosoever does a righteous deed, be they male or female, as long as they are believers, they shall enter the Garden, therein they shall be provided without any limitation. (40:40) O Men, fear your Lord!