Dawār refers in the classical commentary to a stone or marked object around which people once made circuits. The poet uses the image of maidens gathered near it as a visual comparison.
Mulāʾ is the plural of mulāʾah, a large cloth or mantle; mudhayyal means hanging with a long hem or trailing end.
The simile conveys the bright appearance and long tails of the wild cattle through garments with extended borders. It is a pre-Islamic cultural reference in the poem, not a legal or devotional ruling.