أَن لَّا تَعۡبُدُوٓاْ إِلَّا ٱللَّهَۖ إِنِّيٓ أَخَافُ عَلَيۡكُمۡ عَذَابَ يَوۡمٍ أَلِيمٖ
Al laa ta'budooo illal laaha inneee akhaafu 'alaikum 'azaaba Yawmin aleem
English Translation
That you not worship except Allah. Indeed, I fear for you the punishment of a painful day
— Saheeh International