Inna yawma alfasli meeqatuhum ajmaAAeen (surah Ad Dukhaan: 40)

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(44:40) The Day of Final Decision is the appointed time for all; *35

Inna yawmal fasli meeqaatuhum ajma`een

*35) This is the answer to their demand: "Bring back our forefathers if you are truthful." It means: 'Life-after-death is not a trivial matter; it cannot be that whenever somebody denies it, a dead person may he raised immediately from the graveyard and presented before him. For it a time has been fixed by the Lord of the worlds, when He will resurrect to life all the former and the latter generations, gather them together in His Court and will decide their cases. You may believe in it or may not, but this will in any case happen on its own pre ordained time. If you believe in it, it will be to your own advantage, for, being forewarned, you will make preparations to fare well in that Court. If you do not believe in it, you will incur loss for yourselves, for you will expend your whole life in the misunderstanding that good and evil are confined only to this worldly lift; after death there is going to be no court where our good or bad deeds might have to be judged for any permanent results."