فَعَادَى عِدَاءً بَيْنَ ثَوْرٍ وَنَعْجَةٍ دِرَاكًا وَلَمْ يَنْضَحْ بِمَاءٍ فَيُغْسَلِ
Then he ran persistently between a bull and a wild cow, pursuing them in quick succession; he was not so drenched with moisture or sweat as to require washing.
ʿĀdā ʿidāʾan pairs a verb with a cognate verbal noun, intensifying the sense of running. Dirākan conveys pursuit or action in immediate succession.
The closing expression praises stamina: despite the intense movement, the horse is not pictured as exhausted and soaked in sweat.