Jami` at-Tirmidhi 3708
جامع الترمذي#3708Da'ifNarrated Ibn 'Umar:that the Messenger of Allah (ﷺ) mentioned the Fitnah and said: "This one will be wrongfully killed during it," about 'Uthman bin 'Affan [may Allah be pleased with him]
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirHasan Isnaad
Al-AlbaniHasan Isnaad
Bashar Awad MaaroufHasan
Zubair Ali ZaiDaif
In-book reference: 49:104