Surah Qaf, ayah 18

50:18

مَّا يَلۡفِظُ مِن قَوۡلٍ إِلَّا لَدَيۡهِ رَقِيبٌ عَتِيدٞ ١٨

Mmā yalfizu min qawlin illā ladayhi raqībun 'atīd

He [i.e., man] utters no word except that with him is an observer prepared [to record].