«إِنَّ السَّمَاحَةَ وَالْمُرُوءَةَ وَالنَّدَى فِي قُبَّةٍ ضُرِبَتْ عَلَى ابْنِ الْحَشْرَجِ»
“Generosity, nobility, and liberality dwell in a pavilion set over Ibn al-Ḥashraj.”
Instead of directly stating that Ibn al-Ḥashraj possesses these virtues, the poet locates them within his pavilion. The identified place points toward its occupant.
The virtues and the intended person are identifiable, but their relation is conveyed through an indirect attribution rather than a simple overt predication.