Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates this statement of the Noble Prophet (peace and blessings be upon him): "Help your brother, whether he is an oppressor or oppressed." The people said: O Messenger of Allah (peace and blessings be upon him)! We help the oppressed, but how do we help the oppressor? The Noble Prophet (peace and blessings be upon him) said: Stop him from oppression.