Rasullah (sallallahu alayhi wasallam) said: When Muslims cherish hatred for their Ulama, project the buildings of their business centres (e.g. malls, hypermarkets and the like), and marry for the sake of wealth, then Allah Azza Wa Jal inflicts them with four afflictions: Famine, oppression of the rulers, corruption of civil servants, and
attacks of the enemy.” (Mustadrak-e-Haakim) (Ulama in this context refer to the Ulama-e-Haqq, not to the Ulama-e-Soo’ (evil molvies and sheikhs).