«صَادَفْنَا أَرْضًا مُخْضَلَّةَ الرُّبَا مُعْتَلَّةَ الصَّبَا»
We came upon land with fresh, green rises and a pleasant, gentle breeze.
Mukhḍallah suggests moist freshness; rubā are elevated stretches or mounds; ṣabā is a soft, pleasant wind. The paired descriptions create a cool and welcoming atmosphere after a tiring night.
Rubā / ṣabā link through sound while joining the greenery of the land to the softness of the air. The place offers exactly the rest the travellers need.