How do we know the Mahdi if he is present on earth?

The questioner : The one in which it is stated that people will pledge allegiance to the Mahdi when the status is made clear.

The Shaykh : I do not think it is authentic, yes. Yes. I do not know this; regarding this report, I say I do not know of its authenticity. But if they pledge allegiance to him, there is no obstacle to his coming to Makkah, because it is the Mother of Cities, and pledging allegiance there.

The questioner : How do we know him if he is present on earth?

The Shaykh : To what extent? From whom?

The questioner : They mentioned that he resembles the Prophet (peace and blessings be upon him), that his name is like his name, and that he is from the Banu Hashim, from the descendants of the Prophet (peace and blessings be upon him).

The Shaykh : But the thing that resembles mass transmission is that he will emerge. As for his description, if something is established regarding it, it is obligatory to use the wording, otherwise not.