﴿ وَٱلَّذِينَ كَفَرُوا۟ لَهُمْ نَارُ جَهَنَّمَ لَا يُقْضَىٰ عَلَيْهِمْ فَيَمُوتُوا۟ وَلَا يُخَفَّفُ عَنْهُم مِّنْ عَذَابِهَا ۚ كَذَٰلِكَ نَجْزِى كُلَّ كَفُورٍۢ ﴾

“But as for those who are bent on denying the truth - the fire of hell awaits them: no end shall be put to their lives so that they could die, nor shall aught of the suffering caused by that [fire] be lightened for them: thus shall We requite all who are bereft of gratitude.”

Please check ayah 35:37 for complete tafsir.