وَإِذْ قَالَ لُقْمَـٰنُ لِٱبْنِهِۦ وَهُوَ يَعِظُهُۥ يَـٰبُنَىَّ لَا تُشْرِكْ بِٱللَّهِ ۖ إِنَّ ٱلشِّرْكَ لَظُلْمٌ عَظِيمٌ
Wa iz qaala luqmaanu libnihee wa huwa ya'izuhoo ya bunaiya laa tushrik billaah; innash shirka lazulmun 'azeem
And when Luqman said to his son, counseling him: "My dear son, ascribe no partner to God — to ascribe partners to him is a tremendous wrong."