﴿ أَمْ يَقُولُونَ بِهِۦ جِنَّةٌۢ ۚ بَلْ جَآءَهُم بِٱلْحَقِّ وَأَكْثَرُهُمْ لِلْحَقِّ كَٰرِهُونَ ﴾

“Or do they say. “There is madness in him”? Nay, he has brought them the truth - and the truth do most of them detest!”

Please check ayah 23:75 for complete tafsir.