It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Noble Prophet (peace and blessings be upon him) said: "It is obligatory upon a person to listen to and obey his leader, whether he likes it or dislikes it, as long as he is not commanded to commit a sin. For if he is commanded to commit a sin, then there is no listening to or obeying anyone at that time."