13وَإِذ قالَ لُقمانُ لِابنِهِ وَهُوَ يَعِظُهُ يا بُنَيَّ لا تُشرِك بِاللَّهِ ۖ إِنَّ الشِّركَ لَظُلمٌ عَظيمٌTaqi Usmani(Remember) when Luqman said to his son, while he was advising him, .My dear son, do not ascribe partners to Allah. Indeed, ascribing partners to Allah (shirk) is grave transgression.