Let Him Change Evil With His Hand…

On the authority of Abu Sa’eed al-Khudree (may ALLAH be pleased with him) who said:

I heard the Messenger of Allah (peace and blessings of ALLAH be upon him) say:
Whosoever of you sees an evil, let him change it with his hand;
And if he is not able to do so, then [let him change it] with his tongue;
And if he is not able to do so, then with his heart, and that is the weakest of faith.

Reference:
It was related by Muslim.
40 Hadith Nawawi # 34