Jami` at-Tirmidhi 2218
جامع الترمذي#2218SahihAbu Hurairah narrated that the Messenger of Allah(s.a.w) said:"The Hour shall not be established until nearly thirty imposters, Dajjal appear, each of them claiming that he is the Messenger of Allah
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih Bukhari
In-book reference: 33:61