فَمَن يَعْمَلْ مِثْقَالَ ذَرَّةٍ خَيْرًا يَرَهُ ۝ وَمَن يَعْمَلْ مِثْقَالَ ذَرَّةٍ شَرًّا يَرَهُ

The earthquake on Doomsday will be the announcement of the end of the testing period for man. This would mean that the freedom which was theirs on account of their being on trial, has now been snatched away from them. Now the time has come when human beings will be recompensed for their deeds. Today, God’s world is silent, but when conditions change, everything found here will start talking. The inventions of the present day have proved that lifeless or inanimate things also have the capacity to ‘talk.’ A performance in a studio is fully reproduced by a video film and records. Similarly, the present world is, so to say, a big ‘studio’ of God. Whatever a man does or says or even thinks, everything is being recorded at every moment. And when the time comes, this world will repeat everybody’s story in such a way that not a thing, great or small, will be left out.

— Source: Tazkirul Quran (Maulana Wahiduddin Khan) via Quran.com (99:7)