Qabasأُوْلَٰٓئِكَ ٱلَّذِينَ ٱشۡتَرَوُاْ ٱلضَّلَٰلَةَ بِٱلۡهُدَىٰ فَمَا رَبِحَت تِّجَٰرَتُهُمۡ وَمَا كَانُواْ مُهۡتَدِينَ ١٦
Ulā'ikal-ladhīnashtarawud-dalālata bil-hudā famā rabihat tijāratuhum wamā kānū muhtadīn
Those are the ones who have purchased error [in exchange] for guidance, so their transaction has brought no profit, nor were they guided.