To envy is to desire the removal of Allah’s Blessings from their owner. This is the first level of envy. The second level is to hope misfortune follows the servant (as a shadow would follow its object). On this level the envious one wishes that the object of their envy remains ignorant, poor, weak, and hopes that their heart is separated from Allah. They wish the religion of the one they envy remains deficient. In truth, this envious person hates what Allah Decrees and Grants to His servants.
—Ibn al-Qayyim [d. 751H/1350CE]