مَا يَلْفِظُ مِن قَوْلٍ إِلَّا لَدَيْهِ رَقِيبٌ عَتِيدٌ
[50:18]
He utters not a word but there is by him a watcher at hand.
Not a word does he utter but there is a sentinel by him, ready (to note it).
He uttereth no word but there is with him an observer ready.