وَلَا عَلَى جَمْعِ الْمُؤَنَّثِ.
Translation: Nor does the light nūn enter the feminine plural.
The same restriction is applied to the feminine plural: its accepted emphatic construction here uses the heavy nūn with a separator alif.
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Light Nūn Is Excluded from the Feminine Plural
The Two Emphatic Nūns: Forms and Rules
وَلَا عَلَى جَمْعِ الْمُؤَنَّثِ.
Translation: Nor does the light nūn enter the feminine plural.
The same restriction is applied to the feminine plural: its accepted emphatic construction here uses the heavy nūn with a separator alif.