«هَلْ عَثَرْتَ لَهُ فِيمَا لَمَحْتَهُ عَلَى بَدِيعٍ اسْتَمْلَحْتَهُ؟»
Have you found among the lines you saw some striking piece that particularly pleased you?
ʿAtharta here means “come across,” badīʿ denotes a remarkable artistic creation, and istamlaḥtahu indicates finding something pleasing.
The question asks for discrimination and literary taste, not merely an ability to identify the poet.