Al-Haqqah - 69:5

فَأَمَّا ثَمُودُ فَأُهْلِكُوا بِالطَّاغِيَةِ
[69:5]
Then as to Samood, they were destroyed by an excessively severe punishment.
But the Thamud,- they were destroyed by a terrible Storm of thunder and lightning!
As for Thamud, they were destroyed by the lightning.