and mention the brother of ad when he warned his people in the sandy plains and indeed warners came before him and after him saying serve none but allah surely i fear for you the punishment of a grievous 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