فَلَا تَدْعُ مَعَ ٱللَّهِ إِلَـٰهًا ءَاخَرَ فَتَكُونَ مِنَ ٱلْمُعَذَّبِينَ

Fala tadAAu maAAa Allahi ilahanakhara fatakoona mina almuAAaththabeen

So do not invoke with Allāh another deity and [thus] be among the punished.