Is it permissible for a man to shake hands with an elderly woman whose age is, for example, between sixty and one hundred?

Question:
Is it permissible for a man to shake hands with an elderly woman whose age is, for example, between sixty and one hundred?

Answer:
It is not permissible for a man to shake hands with a woman who is not one of his mahram (a relative one may not marry), even if she is elderly, because the Prophet (peace and blessings be upon him) did not shake hands with women, whether elderly or young, except with the women who were his mahram (peace and blessings be upon him). He would take the pledge of allegiance from women by speech, and his hand did not touch the hand of a woman who was not lawful for him, may Allah pray upon him and grant him peace. He is the role model, and there is fitnah (trial, discord or temptation) in it. If the door is opened, you will fall into fitnah. So the conclusion is that it is not permissible for a man to shake hands with a woman who is not one of his mahram. May Allah reward you with good, and may He do you good.