Surah Luqman, Verse 13

وَإِذۡ قَالَ لُقۡمَٰنُ لِٱبۡنِهِۦ وَهُوَ يَعِظُهُۥ يَٰبُنَيَّ لَا تُشۡرِكۡ بِٱللَّهِۖ إِنَّ ٱلشِّرۡكَ لَظُلۡمٌ عَظِيمٞ١٣

wa-idh qāla luq'mānu li-ib'nihi wahuwa yaʿiẓuhu yābunayya lā tush'rik bil-lahi inna l-shir'ka laẓul'mun ʿaẓīmun

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