اُولٰۤىِٕكَ الَّذِيْنَ اشْتَرَوُا الضَّلٰلَةَ بِالْهُدٰىۖ فَمَا رَبِحَتْ تِّجَارَتُهُمْ وَمَا كَانُوْا مُهْتَدِيْنَ ( البقرة: ١٦ )
Ulaaa'ikal lazeenash tara wud dalaalata bilhudaa famaa rabihat tijaaratuhum wa maa kaanoo muhtadeen (al-Baq̈arah 2:16)
Those are the ones who have purchased error [in exchange] for guidance, so their transaction has brought no profit, nor were they guided. (Al-Baqarah  : 16)
1 Mufti Taqi Usmani
These are the people who have bought error at the price of guidance; so their trade has brought no gain, nor have they reached the right Path.