_Sayyiduna Abu Sa’id Al Khudri رضي الله عنه said,_
_I heard Nabi صلى الله عليه وسلم say:_
*“Whomsoever sees an evil, let him change it with his hand, if he is unable to do so, then [let him change it] with his tongue and if he is unable to do that, then with his heart and that is the weakest Iman”*
*_(Sahih Muslim, Hadith: 49)_*
“`When those in authority see any evil being perpetrated then they should stop that evil by means of their hand, be it physically stopping the person carrying out the evil or meting out a punishment.“`
“`Those who do not have such authority, should speak out against the evil. This is what is meant by ‘with his tongue’. This is generally the duty of the Scholars and the learned ones. [Although also encouraged for every muslim.]“`
“`The third level are for those who don’t have the authority/ability to stop the evil. They should use their heart and mind to ponder and reflect as to how they can stop the evil. The very least they could do is to deem the evil action evil.“`
_(Refer: Fathul Mulhim, vol. 1 pg. 435, Hadith: 188)_