﴿ ۞ فَمَنْ أَظْلَمُ مِمَّن كَذَبَ عَلَى ٱللَّهِ وَكَذَّبَ بِٱلصِّدْقِ إِذْ جَآءَهُۥٓ ۚ أَلَيْسَ فِى جَهَنَّمَ مَثْوًۭى لِّلْكَٰفِرِينَ ﴾

“And who could be more wicked than he who invents lies about God? and gives the lie to the truth as soon as it has been placed before him? Is not hell the [proper] abode for all who deny the truth?”

Please check ayah 39:35 for complete tafsir.