In the Quran

۞وَإِلَىٰ ثَمُودَ أَخَاهُمۡ صَٰلِحٗاۚ قَالَ يَٰقَوۡمِ ٱعۡبُدُواْ ٱللَّهَ مَا لَكُم مِّنۡ إِلَٰهٍ غَيۡرُهُۥۖ هُوَ أَنشَأَكُم مِّنَ ٱلۡأَرۡضِ وَٱسۡتَعۡمَرَكُمۡ فِيهَا فَٱسۡتَغۡفِرُوهُ ثُمَّ تُوبُوٓاْ إِلَيۡهِۚ إِنَّ رَبِّي قَرِيبٞ مُّجِيبٞ

"And to Thamud [We sent] their brother Salih. He said, "O my people, worship Allah; you have no deity other than Him. He has produced you from the earth and settled you in it, so ask forgiveness of Him and then repent to Him. Indeed, my Lord is near and responsive"