Is it permissible for a girl to advise a man who is not a mahram to her and who is committing a sin, by sending an anonymous message without revealing her identity?
There is no harm for a woman in denouncing a transgressor, provided she observes a good approach in her denunciation, and she will be rewarded for it.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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