Word by Word Analysis

وَقَالُوٓا۟ أَسَـٰطِيرُ ٱلْأَوَّلِينَ ٱكْتَتَبَهَا فَهِىَ تُمْلَىٰ عَلَيْهِ بُكْرَةً وَأَصِيلًا 5

And they say, "Legends of the former peoples which he has written down, and they are dictated to him morning and afternoon."