It is narrated from Sayyiduna Anas bin Malik, may Allah be pleased with him, that someone said: O Messenger of Allah! When can we stop enjoining good and forbidding evil? The Prophet (peace and blessings be upon him) said: When those matters become apparent which appeared among the Children of Israel, and they are: when indecency appears among the elders, kingship among the young, and knowledge among the lowly people.