وَمَرَّ عَلَى الْقَنَانِ مِنْ نَفَيَانِهِ / فَأَنْزَلَ مِنْهُ الْعُصْمَ مِنْ كُلِّ مَنْزِلِ
The storm’s spray passed over al-Qanān, driving the white-marked mountain animals down from their stations.
Nafayān evokes flying spray or scattered rushes of water. Al-ʿuṣm denotes mountain animals marked with white patches; manzil is a place where they normally shelter.