Surah Qaf, Verse 16:
وَلَقَدْ خَلَقْنَا الْإِنسَانَ وَنَعْلَمُ مَا تُوَسْوِسُ بِهِ نَفْسُهُ وَنَحْنُ أَقْرَبُ إِلَيْهِ مِنْ حَبْلِ الْوَرِيدِ
And indeed We have created man, and We know what his ownself whispers to him. And We are nearer to him than his jugular vein (by Our Knowledge).
Surah Qaf, Verse 17:
إِذْ يَتَلَقَّى الْمُتَلَقِّيَانِ عَنِ الْيَمِينِ وَعَنِ الشِّمَالِ قَعِيدٌ
(Remember!) that the two receivers (recording angels) receive (each human being after he or she has attained the age of puberty), one sitting on the right and one on the left (to note his or her actions).
Surah Qaf, Verse 18:
مَّا يَلْفِظُ مِن قَوْلٍ إِلَّا لَدَيْهِ رَقِيبٌ عَتِيدٌ
Not a word does he (or she) utter, but there is a watcher by him ready (to record it).