Behold, Luqman said to his son by way of instruction: "O my son! join not in worship (others) with Allah: for false worship is indeed the highest wrong-doing." Luqman 31:13 ⧉
Tafsir:
Little has been recorded in history about Luqman, except that he was a wise and God-fearing man. The Quran says that Luqman was a grateful subject of God and who, as a father, advised his son to save himself from polytheism. Polytheism holds that beings other than God are man’s benefactors and that, man should direct his feelings of gratitude towards them. The belief in the oneness of God stems from the intense realisation that God is the sole benefactor of man and as such all his gratitude should be shown only to that One.