Surah Al-'Ankabut (29:16)

وَإِبْرَٰهِيمَ إِذْ قَالَ لِقَوْمِهِ ٱعْبُدُوا۟ ٱللَّهَ وَٱتَّقُوهُ ذَٰلِكُمْ خَيْرٌ لَّكُمْ إِن كُنتُمْ تَعْلَمُونَ

And Abraham, when he said to his people, “Serve Allah and be wary of Him; that is better for you, if you are (truly) knowing.”