«وَلَا عَيْبَ فِيهِمْ غَيْرَ أَنَّ سُيُوفَهُمْ»
They have no defect, except that their swords—
«بِهِنَّ فُلُولٌ مِنْ قِرَاعِ الْكَتَائِبِ»
bear chips from striking opposing battalions.
After ghayr, a defect is expected. The damage to the swords, however, becomes evidence of sustained courage in battle. What initially appears as criticism strengthens the praise. Both the surface defect and the inferred virtue are necessary for the device.