وَإِنْ شِئْتَ سَامَى وَاسِطَ الْكُورِ رَأْسُهَا
وَعَامَتْ بِضَبْعَيْهَا نَجَاءَ الْخَفَيْدَدِ
Meaning: At the rider’s will her head rises to the level of the saddle’s central height, while her forelimbs move as though swimming, with a speed recalling an ostrich.
Wāsiṭ al-kūr refers to the raised central part of the riding-saddle. Sāmā evokes rising to a level; ʿāmat bi-ḍabʿayhā compares the moving forelimbs to swimming. Al-khafaydad supplies the ostrich image. The verse joins bodily position with the animal’s vigorous gait.