The daughter's husband is a mahram to her mother
Machine translationRead the Arabic original
Q2: A woman asks: Is my daughter's husband a mahram to me, or is he a stranger to me? If he is a mahram, is it permissible for me to be alone with him and shake his hand? And if he is a stranger to me, why is that, when I could never marry him? What are the limits of my relationship with him?
A2: The daughter's husband is a mahram, and it is permissible to be alone with him and shake his hand, just as with other mahrams. The evidence for his being a mahram is the saying of Allah the Exalted:[An-Nisa 4:23] The relevant part of the verse is His saying: Thus, the wife's mother is permanently forbidden to her daughter's husband, making him a mahram to her.
A2: The daughter's husband is a mahram, and it is permissible to be alone with him and shake his hand, just as with other mahrams. The evidence for his being a mahram is the saying of Allah the Exalted:
Prohibited to you [for marriage] are your mothers, your daughters, your sisters, your father's sisters, your mother's sisters, your brother's daughters, your sister's daughters, your [milk] mothers who nursed you, your sisters through nursing, your wives' mothers
حُرِّمَتْ عَلَيْكُمْ أُمَّهَاتُكُمْ وَبَنَاتُكُمْ وَأَخَوَاتُكُمْ وَعَمَّاتُكُمْ وَخَالاتُكُمْ وَبَنَاتُ الأَخِ وَبَنَاتُ الأُخْتِ وَأُمَّهَاتُكُمُ اللاتِي أَرْضَعْنَكُمْ وَأَخَوَاتُكُمْ مِنَ الرَّضَاعَةِ وَأُمَّهَاتُ نِسَائِكُمْand the mothers of your wives
وَأُمَّهَاتُ نِسَائِكُمْ
Source
www.alifta.gov.sa
The Arabic text is copied verbatim from the original source, without any edits.