Dalil
العربية

Quran Hud 11:26

أَن لَّا تَعۡبُدُوٓاْ إِلَّا ٱللَّهَۖ إِنِّيٓ أَخَافُ عَلَيۡكُمۡ عَذَابَ يَوۡمٍ أَلِيمٖ

Translation

That you not worship except Allāh. Indeed, I fear for you the punishment of a painful day."