Is the Hajj of one who lost consciousness before Arafah valid if he was then carried to Arafah on the Day of Arafah while still unconscious, without his knowledge?

Scholars have stated that the standing of an unconscious person is sufficient. So, if a person becomes unconscious before the dawn of the Day of Arafah and does not regain consciousness until after the dawn of the Day of Sacrifice, and they were in Arafah and stood there, then their Hajj is valid.