كَأَنَّ عَلَى الْمَتْنَيْنِ مِنْهُ إِذَا انْتَحَى
مَدَاكَ عَرُوسٍ أَوْ صَلَايَةَ حَنْظَلِ
“When it turns or leans to one side, the two surfaces of its back seem like a bride’s smooth grinding stone for perfume, or a polished slab used to grind colocynth.”
Al-matnayn denotes both sides of the horse’s back; idhā intaḥā means “when it inclines or directs itself.” The comparisons emphasize smoothness, firmness, and polished texture.