18:104
ٱلَّذِینَ ضَلَّ سَعۡیُهُمۡ فِی ٱلۡحَیَوٰةِ ٱلدُّنۡیَا وَهُمۡ یَحۡسَبُونَ أَنَّهُمۡ یُحۡسِنُونَ صُنۡعًا
Those whose effort goeth astray in the life of the world, and yet they reckon that they do good work.
— Mohammed Marmaduke William Pickthall
Allazeena dalla sa'yuhum fil hayaatid dunyaa wa hum yahsaboona annahum yuhsinoona sun'aa