Is it permissible to give a brother's phone number to a woman who is a friend of the mother, for her to give it to her daughter who resides in the same country as the brother, given the possibility of fitna (temptation/strife) or her need for worldly gains, and would the questioner incur sin if the brother is tempted, and what is the ruling on this if the questioner suspects that the woman might be seeking marriage?
If the woman's ill intention is not apparent to you, and your brother has given permission for his number to be given to her, then there is no blame upon you for doing so. Otherwise, it is not permissible. If your brother is tempted due to your giving the number, there is no sin upon you, and it is recommended to remind him to be wary of temptations and to keep company with the righteous.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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