Surah Al-Qalam Verse 51

وَإِن يَكَادُ الَّذِينَ كَفَرُوا لَيُزْلِقُونَكَ بِأَبْصَارِهِمْ لَمَّا سَمِعُوا الذِّكْرَ وَيَقُولُونَ إِنَّهُ لَمَجْنُونٌ

Wa iny-yakaadul lazeena kafaroo la-yuzliqoonaka biabsaarihim lammaa saml'uz-Zikra wa yaqooloona innahoo lamajnoon

Translation / The Meaning

And indeed, those who disbelieve would almost make you slip with their eyes when they hear the message, and they say, "Indeed, he is mad."