Shaking hands with the maternal aunt of a paternal brother

The questioner:
If I have a brother from my father, do I have the right to shake the hand of his maternal aunt, meaning the maternal aunt of my brother?

Another questioner:
We provide.

The Shaykh:
Oh, my.

The questioner:
A brother from the father, so do I have the right to shake the hand of my brother's maternal aunt?

The Shaykh:
Your father's wife, do you mean?

The questioner:
The mother is different, meaning he has a brother from his mother.

The Shaykh:
They call him your uncle, and the father's wife is a mahram, your father's wife is a mahram, and your father's wife is a mahram if she is your mother's sister. As for the maternal aunt of your brother from your father, she is not your maternal aunt; she is not a mahram. The maternal aunt of your brother from your father is not your maternal aunt, unless she is your father's maternal aunt. If she is, even if she is distant, your father's maternal aunt or your grandfather's maternal aunt, whether by blood or by breastfeeding, she is a mahram for you. But the maternal aunt of your brother from your father, she is not your mother's sister, nor is she your mother's sister, no, she is not a mahram for you. Yes. Yes.

The questioner:
My mother, I saw the father.

The Shaykh:
No, the mother of the father's wife is a mahram for your father, the mother of the father's wife is a mahram for your father, and the mother of your father's wife is a mahram for you. Your father's wife, your grandfather, your grandfather's grandfather, and your mother's father, these are mahrams, and their wives are mahrams. As for the mother of the wife, she is a mahram for you, but she is a mahram for your father because she is the mother of your wife. And as for you, she is a mahram for you, my son. Yes.