What is the ruling of the فقهاء (jurists) on the permissibility of shaking hands with one who is in a state of major ritual impurity (جنب) and those who are in a similar state? And what is the most preponderant opinion?

The Imams have agreed upon the purity of the body, sweat, and clothes of the one in a state of major ritual impurity (junub), the menstruating woman (ha'idh), and the woman in post-natal bleeding (nifas (definition)), and that there is no disagreement regarding this. Evidence for this is that the Prophet, peace be upon him, used to command Aisha to wear an izar (waist wrapper) and then he would be intimate with her while she was menstruating. He would also extend his head to her, and she would wash it while she was menstruating. He would recline in her lap and recite the Qur'an. She would drink, and he would take the vessel from her, placing his mouth where her mouth had been. Based on this, it is permissible to shake hands with theub, the menstruating woman, and the woman in post-natal bleeding for anyone with whom it was permissible to shake hands before these states.