وَلا تَكونوا كَالَّذينَ نَسُوا اللَّهَ فَأَنساهُم أَنفُسَهُم ۚ أُولـٰئِكَ هُمُ الفاسِقونَ

And be not like those who forgot God, so He made them forget themselves. These are the sinners.