Give due respect to Aalims who practice what they preach. They are the minarets of religion and yes, run away from an Alim who does not practice (what he preaches) as if you are running away from a lion. According to Imam's order, they are not alims. They have harmed the religion more than the army of Yazid bin Moawiya.(Tafseer-e-Burhan, p. 118)