Quran 43:80 from Surah Az-Zukhruf on Divine Marvels.
أَمۡ يَحۡسَبُونَ أَنَّا لَا نَسۡمَعُ سِرَّهُمۡ وَنَجۡوَىٰهُمۚ بَلَىٰ وَرُسُلُنَا لَدَيۡهِمۡ يَكۡتُبُونَ
English translation: Or (do) they think that We (can) not hear their secret(s) and their private counsel(s) Nay and Our Messengers with them are recording
Transliteration: am yahsabuna anna la nasma'u sirrahum wanajwahum bala warusuluna ladayhim yaktubuna