وَ مَا كُنْتُمْ تَسْتَتِرُوْنَ اَنْ یَّشْهَدَ عَلَیْكُمْ سَمْعُكُمْ وَ لَاۤ اَبْصَارُكُمْ وَ لَا جُلُوْدُكُمْ وَ لٰكِنْ ظَنَنْتُمْ اَنَّ اللّٰهَ لَا یَعْلَمُ كَثِیْرًا مِّمَّا تَعْمَلُوْنَ(۲۲)(سورۃ حم السجدہ)
Translation
And you could not hide yourselves (while committing sins) from your ears, your eyes, and your skins bearing witness against you, but you thought that Allah did not know much of what you do. (22) (Asan Tarjuma-tul-Quran)
Meaning: It is stated in a Hadith of Sahih al-Bukhari that some foolish disbelievers used to think that if they committed a sin secretly, Allah Almighty would not know about it; at that time they thought that there was no witness to their sin, nor (Allah forbid) would Allah Almighty find out about it. It would not even have crossed their minds or imagination that not only is Allah Almighty a witness to everything, but these very limbs of their own bodies would also become witnesses against them. (Asan Tarjuma-tul-Quran)