Sura 68: AL-QALAM (THE PEN) - Juz' 29 - Translation Yusufali

وَإِنْ يَكَادُ الَّذِينَ كَفَرُوا لَيُزْلِقُونَكَ بِأَبْصَارِهِمْ لَمَّا سَمِعُوا الذِّكْرَ وَيَقُولُونَ إِنَّهُ لَمَجْنُونٌ ﴿۵۱﴾
And the Unbelievers would almost trip thee up with their eyes when they hear the Message; and they say: "Surely he is possessed!" (51)
وَمَا هُوَ إِلَّا ذِكْرٌ لِلْعَالَمِينَ ﴿۵۲﴾
But it is nothing less than a Message to all the worlds. (52)