Arabic text
أُوْلَـٰٓئِكَ ٱلَّذِينَ ٱشۡتَرَوُاْ ٱلضَّلَٰلَةَ بِٱلۡهُدَىٰ فَمَا رَبِحَت تِّجَٰرَتُهُمۡ وَمَا كَانُواْ مُهۡتَدِينَ
Those are the ones who have purchased error [in exchange] for guidance, so their transaction has brought no profit, nor were they guided.