كَأَنَّ غُضُونَهُنَّ مُتُونُ غُدْرٍ تُصَفِّقُهَا الرِّيَاحُ إِذَا جَرَيْنَا
The armour’s folds resemble the surfaces of pools stirred into ripples by moving winds.
Kaʾanna explicitly introduces a simile. The subject compared is ghuḍūnuhunna—the armour’s folds—and the comparison is with mutūnu ghudr—the surfaces of pools.
Tuṣaffiquhā al-riyāḥ evokes the surface movement caused by wind. The poet transforms rigid metallic equipment into a lively water image, making texture visible through motion.