(Al-Ahraf) 7 : 65
وَإِلَىٰ عَادٍ أَخَاهُمْ هُودًا ۗ قَالَ يَا قَوْمِ اعْبُدُوا اللَّهَ مَا لَكُمْ مِنْ إِلَٰهٍ غَيْرُهُ ۚ أَفَلَا تَتَّقُونَ
And into Aa’d people We sent their brother Hood. He said: "Oh my people! You serve only Lord Allah, you have no Deity besides Him, then don’t you become heedful?"