Abu Saeed al-Khudri (RA) narrated that he heard the Messenger of Allah (PBUH) say, “Whoever among you sees a wrong action, should change it with his hand. If he is unable to do so, then he should address it with his tongue. If he is unable to do even that, he should regard it as wrong in his heart, and that is the weakest degree of faith.”
(Al-Bayhaqi, Abu Bakr, Al-Sunan al-Kubra, vol. 6, p. 157, Dar al-Kutub al-Ilmiyyah, Beirut, 1424 AH.)
