The one who taught with a pen.
The aim of teaching mankind, who are deputed to the earth as His representative, writing with pen is to propagate His Message to the entire mankind. As explained in verse 102:8, on the Day of Judgment, when mankind will be questioned about all favors, those who are taught writing will also be questioned about it. That means whatever is written with the pen is also being inscribed in the book of deeds fastened around the neck, as told in verses 17:13-14. But the Arabic Qur’an Reading Fujjar who have made their food rejecting Adhikr as told in verse 56:82 not only do not do this responsibility, but also try to obstruct the odd believer from propagating It to the entire world. Thus, they have become the worst and the lowest creatures among thousand of communities of the Lord’s creatures. They have read verses 25:33-34, which say that Kuffar who reject Adhikr–the Best Interpretation of the Lord’s Book–will be dragged into Hell prone on their faces, such are in the worst place and are the most strayed. See explanation 2:165-167; 9:67-68 and 23:62-63.