Writing the Basmala at the Top of a Letter

Question

Is it permissible or impermissible to write [ar]بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ[/ar] at the top of a letter?

Answer

It is permissible for the sake of blessing. But if in some place there is a possibility that full reverence for the writing cannot be maintained, then one should exercise caution.

Source: Fatawa Mahmudiyya

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