وَتِلْكَ عَادٌ جَحَدُوا بِآيَاتِ رَبِّهِمْ وَعَصَوْا رُسُلَهُ وَاتَّبَعُوا أَمْرَ كُلِّ جَبَّارٍ عَنِيدٍ

Such were [the people of] Ad: they impugned the signs of their Lord and disobeyed His apostles, and followed the dictates of every obstinate tyrant.