﴿ 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!”

(Or say they) indeed they say: (There is a madness in him? Nay, but he bringeth them the Truth) Muhammad (pbuh) brought them the Qur'an, the profession of Allah's divine Oneness and the Message; (and most of them are haters) deniers (of the Truth) of the Qur'an.