Weak (da'if) — scholars do not use this report as evidence for rulings.
It was narrated that Abu Umamah Al-Bahili said:"The Messenger of Allah (ﷺ) addressed us, and most of his speech had to do with telling us about Dajjal. He warned about him, and among the things he said was: 'There will not be any tribulation on earth, since the time Allah created the offspring of Adam, that will be greater than the tribulation of Dajjal. Allah has not sent any Prophet but he warned his nation about Dajjal. I am the last of the Prophets, and you are the last of the nations. He will undoubtedly appear among you. If he appears while I am among you, I will contend with him on behalf of every Muslim, and if he appears while I am not among you, then each man must fend for himself…