 recall the brother of the people of ad when he warned his people in the valley of alahqaf saying there existed many warners before and after him. do not worship anything other than god. i am afraid for you about the torment of the great day.
واذكر أخا عاد إذ أنذر قومه بالأحقاف وقد خلت النذر من بين يديه ومن خلفه ألا تعبدوا إلا الله إني أخاف عليكم عذاب يوم عظيم