وَإِنَّهُمْ لَيَصُدُّونَهُمْ عَنِ السَّبِيلِ وَيَحْسَبُونَ أَنَّهُم مُّهْتَدُونَ
[43:37]
And most surely they turn them away from the path, and they think that they are guided aright:
Such (evil ones) really hinder them from the Path, but they think that they are being guided aright!
And lo! they surely turn them from the way of Allah, and yet they deem that they are rightly guided;