Surat Al-'An`ām - سورة الأنعام

وَلَوْ نَزَّلْنَا عَلَيْكَ كِتَابًا فِي قِرْطَاسٍ فَلَمَسُوهُ بِأَيْدِيهِمْ لَقَالَ الَّذِينَ كَفَرُوا إِنْ هَٰذَا إِلَّا سِحْرٌ مُّبِينٌ

Muhsin Khan: And even if We had sent down unto you (O Muhammad SAW) a Message written on paper so that they could touch it with their hands, the disbelievers would have said: "This is nothing but obvious magic!"