وَلَقَدۡ اَرۡسَلۡنَا٘ اِلٰي ثَمُوۡدَ اَخَاهُمۡ صٰلِحًا اَنِ اعۡبُدُوا اللّٰهَ فَاِذَا هُمۡ فَرِيۡقٰنِ يَخۡتَصِمُوۡنَ

And We had certainly sent to Thamud their brother Salih, [saying], "Worship Allah," and at once they were two parties conflicting