68:51
وَإِن يَكَادُ ٱلَّذِينَ كَفَرُوا۟ لَيُزْلِقُونَكَ بِأَبْصَـٰرِهِمْ لَمَّا سَمِعُوا۟ ٱلذِّكْرَ وَيَقُولُونَ إِنَّهُۥ لَمَجْنُونٌ
wa-in yakādu alladhīna kafarū layuz'liqūnaka bi-abṣārihim lammā samiʿū l-dhik'ra wayaqūlūna innahu lamajnūnun
The disbelievers almost strike you down with their looks when they hear the Quran. They say, ‘He must be mad!’
And verily, those who disbelieve would almost make you slip with their eyes (through hatred) when they hear the Reminder (the Qur’ân), and they say: "Verily, he (Muhammad صلى الله عليه وسلم) is a madman!"