Qur'an 2:16

أُو۟لَـٰٓئِكَ ٱلَّذِينَ ٱشْتَرَوُا۟ ٱلضَّلَـٰلَةَ بِٱلْهُدَىٰ فَمَا رَبِحَت تِّجَـٰرَتُهُمْ وَمَا كَانُوا۟ مُهْتَدِينَ

“Those are the ones who have purchased error [in exchange] for guidance, so their transaction has brought no profit, nor were they guided.”

Al-Baqara 2:16 · Saheeh International