What is the ruling regarding the mother of one's father's wife in relation to the son?
Machine translationRead the Arabic original
The questioner:
Is the mother of my father's wife a mahram (a relative one may not marry) to me?
The Shaykh:
Yes.
The questioner:
Is the mother of one's father's wife a mahram (a relative one may not marry) for a man?
The Shaykh:
No, the mother of your father's wife is not a mahram (a relative one may not marry) to you; rather, she is a mahram (a relative one may not marry) to your father. As for you, she is not a mahram (a relative one may not marry) to you. Your mahram (a relative one may not marry) is your father's wife, but her mother is a stranger to you. Yes.
Is the mother of my father's wife a mahram (a relative one may not marry) to me?
The Shaykh:
Yes.
The questioner:
Is the mother of one's father's wife a mahram (a relative one may not marry) for a man?
The Shaykh:
No, the mother of your father's wife is not a mahram (a relative one may not marry) to you; rather, she is a mahram (a relative one may not marry) to your father. As for you, she is not a mahram (a relative one may not marry) to you. Your mahram (a relative one may not marry) is your father's wife, but her mother is a stranger to you. Yes.
Source
قناة «العلامة الدكتور صالح الفوزان»، ما حكم أم زوجة الأب بالنسبة للابن؟ #فتاوى الفوزان — youtube.com
The Arabic text is a machine transcription of the audio recording.