Exegesis of verse 82:6
Nahj al-Balāgha|Volume 1|Book 1|Chapter 223
أَدْحَضُ مَسْؤُول حُجَّةً، وَأَقْطَعُ مُغْتَرٍّ مَعْذِرَةً، لَقَدْ أَبْرَحَ جَهَالَةً بِنَفْسِهِ.
The addressee (in this verse) is devoid of argument and his excuse is most deceptive. He is detaining himself in ignorance.