Surah Az-Zukhruf 43:80

أَمْ يَحْسَبُونَ أَنَّا لَا نَسْمَعُ سِرَّهُمْ وَنَجْوَىٰهُم ۚ بَلَىٰ وَرُسُلُنَا لَدَيْهِمْ يَكْتُبُونَ

Or do they think that We hear not their secrets and their private conversations? Yes, [We do], and Our messengers [i.e., angels] are with them recording.

Translation: Saheeh International

Tafsir

Or do they reckon that We do not hear their secret thoughts and their conspiring? that is to say what they secretly communicate to others and what they openly conspire about among themselves. Yes indeed! We hear all of that and Our messengers the guardians are with them keeping a record of that.

Excerpt from Tafsir al-Jalalayn, commentary on 43:80, via Quran.com. The reader has the full commentary and 9 more tafsirs.