وَقَدْ تَدْخُلُ فِي الْقَسَمِ وُجُوبًا.
Translation: It may enter an oath-answer obligatorily.
The text notes obligatory emphatic nūn in the relevant affirmative future oath-answer pattern. The lam and nūn reinforce the promised action.
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Emphatic Nūn in Oaths
The Two Emphatic Nūns: Forms and Rules
وَقَدْ تَدْخُلُ فِي الْقَسَمِ وُجُوبًا.
Translation: It may enter an oath-answer obligatorily.
The text notes obligatory emphatic nūn in the relevant affirmative future oath-answer pattern. The lam and nūn reinforce the promised action.