Jami` at-Tirmidhi 2209
جامع الترمذي#2209SahihHudhaifah bin Al-Yaman narrated that the Messenger of Allah(s.a.w) said:"The Hour will not be established until the happiest of people in the world is Luka' bin Luka
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
Zubair Ali ZaiIsnaad Hasan
In-book reference: 33:52