Jami` at-Tirmidhi 2216
جامع الترمذي#2216SahihAbu Hurairah narrated that the Messenger of Allah(s.a.w) said:"When Kisra is ruined, there will be no Kisra after him, and when Caesar is ruined, there will be no Caesar after him. By the One in Whose Hand is my soul! You shall spend their treasures in Allah's cause
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 - Agreed Upon
In-book reference: 33:59