Indeed, the worst of living creatures in the sight of Allah are those who have disbelieved, and they will not [ever] believe -
The Saheeh International Quran Translation
إِنَّ شَرَّ ٱلدَّوَآبِّ عِندَ ٱللَّهِ ٱلَّذِينَ كَفَرُوا۟ فَهُمْ لَا يُؤْمِنُونَIndeed, the worst of living creatures in the sight of Allah are those who have disbelieved, and they will not [ever] believe -