أَن لَّا تَعۡبُدُوٓاْ إِلَّا ٱللَّهَۖ إِنِّيٓ أَخَافُ عَلَيۡكُمۡ عَذَابَ يَوۡمٍ أَلِيمٖ
An la taAAbudoo illa Allaha innee akhafu AAalaykum AAathaba yawmin aleemin
"That ye serve none but Allah: Verily I do fear for you the penalty of a grievous day."