﴿ ۞ 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?”

(And who doth greater wrong) in his state of disbelief (than he who telleth a lie against Allah) than the one who rejects the Qur'an and claims that Allah has a son or partner; the reference here is to Abu Jahl and his host, (and denieth the Truth) the Qur'an and belief in Allah's divine Oneness (when it reacheth him) when Muhammad brought it to him? (Will not the home) and abode (of disbelievers) Abu Jahl and his host (be in hell?