وَلا تَكونوا كَالَّذينَ نَسُوا اللَّهَ فَأَنساهُم أَنفُسَهُم ۚ أُولـٰئِكَ هُمُ الفاسِقونَ

And be not like those who forgot Allah, so He made them forget themselves. Those are the defiantly disobedient.