وَلَقَدْ خَلَقْنَا الْإِنسَانَ وَنَعْلَمُ مَا تُوَسْوِسُ بِهِ نَفْسُهُ ۚ وَنَحْنُ أَقْرَبُ إِلَيْهِ مِنْ حَبْلِ الْوَرِيدِ ۝ إِذْ يَتَلَقَّى الْمُتَلَقِّيَانِ عَنِ الْيَمِينِ وَعَنِ الشِّمَالِ قَعِيدٌ

The study of this world shows that there is an unerring system of ‘recording’ in operation here. Man’s thoughts are impressed on the membrane of his brain. Every utterance a man makes is permanently preserved in the shape of sound waves in the air. Man’s actions are preserved in the external world by means of heat waves in such a way that they can be repeated at any time. All these are known facts of today, and these known facts are what make the Quran’s claim credible that man’s intentions, his utterances and his actions, are all in the knowledge of his Creator. All affairs of all human beings are entered in the registers of the angels.

— Source: Tazkirul Quran (Maulana Wahiduddin Khan) via Quran.com (50:16)