Al-Fajr - 89:6

أَلَمْ تَرَ كَيْفَ فَعَلَ رَبُّكَ بِعَادٍ
[89:6]
Have you not considered how your Lord dealt with Ad,
Seest thou not how thy Lord dealt with the 'Ad (people),-
Dost thou not consider how thy Lord dealt with (the tribe of) A'ad,