Is it impermissible for a man to shake hands with a non-mahram woman, even if she is elderly and undesirable, and is the punishment for that to be stabbed with an iron needle, specifically for the man only?

Shaking hands with a non-mahram woman is forbidden, as narrated from the Prophet, may Allah’s prayers and peace be upon him: "For one of you to be stabbed in the head with an iron needle is better for him than that he should touch a woman who is not lawful for him." The warning in the hadith is not a punishment, but rather a deterrent from shaking hands with a non-mahram woman and a clarification of its seriousness. The meaning also includes women, and in fact, touching may be more severe in her case due to the strictness of Islamic law in requiring her to be chaste and modest.