وَمَا كُنتُمْ تَسْتَتِرُونَ أَن يَشْهَدَ عَلَيْكُمْ سَمْعُكُمْ وَلَا أَبْصَارُكُمْ وَلَا جُلُودُكُمْ وَلَكِن ظَنَنتُمْ أَنَّ اللَّهَ لَا يَعْلَمُ كَثِيرًا مِّمَّا تَعْمَلُونَ

You did not use to conceal yourselves [while perpetrating sinful acts] lest your hearing, your eyes, or your skins should bear witness against you, but you thought that Allah did not know most of what you did.