Jami` at-Tirmidhi 2269
جامع الترمذي#2269Da'ifAbu Hurairah narrated that the Messenger of Allah(s.a.w) said:"Black standards will come from Khurasan, nothing shall turn them back until they are planted in Jerusalem
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirDaif Isnaad
Al-AlbaniDaif Isnaad
Zubair Ali ZaiDaif
In-book reference: 33:112