لَا، وَشَفَاهُ اللَّهُ
No; and may Allah heal him.
If someone asks, “Has Ali recovered from illness?”, la denies recovery while shafahu Allah independently prays for his healing. Wāw preserves the separation between the answer and the supplication.
لَا شَفَاهُ اللَّهُ
May Allah not heal him.
Without wāw, la may be heard as negating the prayer itself. The reason for coordination here is therefore avoiding a meaning contrary to the speaker’s intention, not simply thematic similarity.
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Al-Wasl wa-l-Fasl: Rhetoric of Joining and Separating Sentences
لَا، وَشَفَاهُ اللَّهُ
No; and may Allah heal him.
If someone asks, “Has Ali recovered from illness?”, la denies recovery while shafahu Allah independently prays for his healing. Wāw preserves the separation between the answer and the supplication.
لَا شَفَاهُ اللَّهُ
May Allah not heal him.
Without wāw, la may be heard as negating the prayer itself. The reason for coordination here is therefore avoiding a meaning contrary to the speaker’s intention, not simply thematic similarity.