Quran 7, Al-A'raf (The Heights) ⓘ

7:73And to (the tribe of) Thamud (We sent) their brother Salih. He said: O my people! Serve Allah. Ye have no other Allah save Him. A wonder from your Lord hath come unto you. Lo! this is the camel of Allah, a token unto you; so let her feed in Allah's earth, and touch her not with hurt lest painful torment seize you.

وَإِلَى ثَمُودَ أَخَاهُمْ صَالِحًا قَالَ يَا قَوْمِ اعْبُدُوا اللَّهَ مَا لَكُمْ مِنْ إِلَهٍ غَيْرُهُ قَدْ جَاءَتْكُمْ بَيِّنَةٌ مِنْ رَبِّكُمْ هَذِهِ نَاقَةُ اللَّهِ لَكُمْ آيَةً فَذَرُوهَا تَأْكُلْ فِي أَرْضِ اللَّهِ وَلَا تَمَسُّوهَا بِسُوءٍ فَيَأْخُذَكُمْ عَذَابٌ أَلِيمٌ