Adversaries acknowledged Muhammad wrote the Quran

Even the prophet's adversaries among his contemporaries acknowledged that he could read and write. This is stated in the following verse.

25:5 They also said, “Tales from the past that he wrote down; they were dictated to him day and night.” (٥) وَقَالُوا أَسَاطِيرُ الْأَوَّلِينَ اكْتَتَبَهَا فَهِيَ تُمْلَىٰ عَلَيْهِ بُكْرَةً وَأَصِيلًا