Those are the ones who will have lost themselves, and lost from them is what they used to invent.
The Saheeh International Quran Translation
أُو۟لَٰٓئِكَ ٱلَّذِينَ خَسِرُوٓا۟ أَنفُسَهُمْ وَضَلَّ عَنْهُم مَّا كَانُوا۟ يَفْتَرُونَThose are the ones who will have lost themselves, and lost from them is what they used to invent.