Is it permissible for a nephew (son of a brother or sister) to enter upon a woman or shake her hand while she is in her 'iddah (waiting period)?
A nephew or niece is considered a prohibitive degree of kinship (mahram), so he is permitted to enter upon his paternal aunt or maternal aunt and shake her hand, whether she is in her 'iddah (waiting period) or not.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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