Preaching Without Practicing Oneself
Question
What is the ruling regarding one who does not himself act upon enjoining good and forbidding evil, yet exhorts and encourages others to do so?
Answer
He is sinful for not acting accordingly himself. May Allah Most High grant success (tawfiq) to act. Preachers who deliver sermons but do not act upon them themselves — their lips will be cut with scissors of fire.
Source: Fatawa Mahmudiyya
Preview. The full text opens with JavaScript enabled.