Sahih Muslim #7348 · The Book of Tribulations and Portents of the Last Hour

I accompanied Ibn Sayyad to Mecca and he said to me: What I have gathered from people is that they think that I am Dajjal. Have you not heard Allah's Messenger (may peace upon him) as saying: He will have no children, I said: Yes, of course. Thereupon he said: But I have children. Have you not heard Allah's Messenger (ﷺ) as saying: He would not enter Mecca and Medina? I said: Yes, of course. Thereupon he said I have been once in Medina and now I intend to go to Mecca. And he said to me at the end of his talk: By Allah, I know his place of birth his abode where he is just now. He (Abu Sa'id) said: This caused confusion in my mind (in regard to his identity).