What is the ruling on not exchanging greetings (Salaam) between a brother's wife and her husband's brother, and is a woman obligated to initiate or return the greeting to non-mahram men?
There is no harm for a man or a woman in greeting his brother's wife (sister-in-law) or returning her greeting, as long as there is no fear of temptation arising from it.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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