Quran 31:13 — Surah Luqman, ayah 13

وَإِذۡ قَالَ لُقۡمَٰنُ لِٱبۡنِهِۦ وَهُوَ يَعِظُهُۥ يَٰبُنَيَّ لَا تُشۡرِكۡ بِٱللَّهِۖ إِنَّ ٱلشِّرۡكَ لَظُلۡمٌ عَظِيمٞ

And [mention, O Muhammad], when Luqman said to his son while he was instructing him, "O my son, do not associate [anything] with Allah. Indeed, association [with him] is great injustice

Kada Lukman reče sinu svome, savjetujući ga: "O sinko moj, ne smatraj druge Allahu ravnim, mnogoboštvo je, zaista, velika nepravda."