Surah Al-'Ankabut, ayah 16

وَإِبۡرَٰهِيمَ إِذۡ قَالَ لِقَوۡمِهِ ٱعۡبُدُواْ ٱللَّهَ وَٱتَّقُوهُۖ ذَٰلِكُمۡ خَيۡرٞ لَّكُمۡ إِن كُنتُمۡ تَعۡلَمُونَ ١٦

Wa ibrāhīma idh qāla liqawmihi'budullāha wattaqūhu dhālikum khayrul lakum in kuntum ta'lamūn

And [We sent] Abraham, when he said to his people, "Worship Allāh and fear Him. That is best for you, if you should know.