Al-Kahf 18:54

Walaqad sarrafna fee hathaalqur-ani linnasi min kulli mathalin wakanaal-insanu akthara shay-in jadala

And We have certainly diversified in this Qur’ān for the people from every [kind of] example; but man has ever been, most of anything, [prone to] dispute.

Indeed We have explained in this Qur’ān every subject in various ways for the benefit of the people, but out of all creation, man is most disputing.