Al-Baqarah (البقرة)
Chapter 2 - The Cow
أُو۟لَٰٓئِكَ ٱلَّذِينَ ٱشْتَرَوُا۟ ٱلضَّلَٰلَةَ بِٱلْهُدَىٰ فَمَا رَبِحَت تِّجَٰرَتُهُمْ وَمَا كَانُوا۟ مُهْتَدِينَ
Ulaaa'ikal lazeenash tara wud dalaalata bilhudaa famaa rabihat tijaaratuhum wa maa kaanoo muhtadeen
Those are the ones who have purchased error [in exchange] for guidance, so their transaction has brought no profit, nor were they guided.
Quran 2:16 - Surah Al-Baqarah
وَإِذَا لَقُوا۟ ٱلَّذِينَ ءَامَنُوا۟ قَالُوٓا۟ ءَامَنَّا وَإِذَا خَلَوْا۟ إِلَىٰ شَيَٰطِينِهِمْ قَالُوٓا۟ إِنَّا مَعَكُمْ إِنَّمَا نَحْنُ مُسْتَهْزِءُونَ
And when they meet those who believe, they say, "We believe"; but when they are alone with their evil ones, they say, "Indeed, we are with you; we were only mockers."
ٱللَّهُ يَسْتَهْزِئُ بِهِمْ وَيَمُدُّهُمْ فِى طُغْيَٰنِهِمْ يَعْمَهُونَ
[But] Allah mocks them and prolongs them in their transgression [while] they wander blindly.
أُو۟لَٰٓئِكَ ٱلَّذِينَ ٱشْتَرَوُا۟ ٱلضَّلَٰلَةَ بِٱلْهُدَىٰ فَمَا رَبِحَت تِّجَٰرَتُهُمْ 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.
مَثَلُهُمْ كَمَثَلِ ٱلَّذِى ٱسْتَوْقَدَ نَارًۭا فَلَمَّآ أَضَآءَتْ مَا حَوْلَهُۥ ذَهَبَ ٱللَّهُ بِنُورِهِمْ وَتَرَكَهُمْ فِى ظُلُمَٰتٍۢ لَّا يُبْصِرُونَ
Their example is that of one who kindled a fire, but when it illuminated what was around him, Allah took away their light and left them in darkness [so] they could not see.
صُمٌّۢ بُكْمٌ عُمْىٌۭ فَهُمْ لَا يَرْجِعُونَ
Deaf, dumb and blind - so they will not return [to the right path].