remember the brother of ad. when he warned his people in ahqaf though many a warner had come and gone before and after him do not worship any one but god for i fear the punishment of an awful day for you
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