Hud (11:26)
أَن لَّا تَعۡبُدُوۤا۟ إِلَّا ٱللَّهَۖ إِنِّیۤ أَخَافُ عَلَیۡكُمۡ عَذَابَ یَوۡمٍ أَلِیمࣲ
That ye serve none, save Allah. Lo! I fear for you the retribution of a painful Day.
— Mohammed Marmaduke William Pickthall
Al laa ta'budooo illal laaha inneee akhaafu 'alaikum 'azaaba Yawmin aleem