Jami` at-Tirmidhi 2229
جامع الترمذي#2229SahihThawban narrated that the Messenger of Allah(s.a.w) said:"I only fear for my Ummah from the misguiding A'immah." He said that the Messenger of Allah(s.a.w) said: "There will never cease to be a group from my Ummah manifest upon the truth, they will not be harmed by those who forsake them until Allah's Decree comes
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 Muslim
In-book reference: 33:72