Surat Al-Ankaboot (The Spider) - العنكبوت

وَمَا كُنتَ تَتْلُوا۟ مِن قَبْلِهِۦ مِن كِتَٰبٍ وَلَا تَخُطُّهُۥ بِيَمِينِكَ إِذًا لَّٱرْتَابَ ٱلْمُبْطِلُونَ ﴿٤٨﴾

And you did not recite before it any book, nor did you transcribe one with your right hand, for then could those who say untrue things have doubted.