وَلَا يَعْمَلُ فِي الْمُظْهَرِ أَصْلًا إِلَّا فِي مِثْلِ قَوْلِهِمْ...
The matn explicitly states that the elative normally does not govern an overt noun; a special established example is exceptional.
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Can It Raise an Overt Subject?
Ism al-Tafḍīl: Formation, Comparison, Agreement and Parsing
وَلَا يَعْمَلُ فِي الْمُظْهَرِ أَصْلًا إِلَّا فِي مِثْلِ قَوْلِهِمْ...
The matn explicitly states that the elative normally does not govern an overt noun; a special established example is exceptional.