سورة Hud 11:26

أَن لَّا تَعْبُدُوٓا۟ إِلَّا ٱللَّهَ ۖ إِنِّىٓ أَخَافُ عَلَيْكُمْ عَذَابَ يَوْمٍ أَلِيمٍۢ ٢٦

that you should worship none but Allah. I truly fear for you the torment of a painful Day.”