Jami` at-Tirmidhi 3708
جامع الترمذي#3708Hasanحَدَّثَنَا إِبْرَاهِيمُ بْنُ سَعِيدٍ الْجَوْهَرِيُّ، قَالَ حَدَّثَنَا شَاذَانُ الأَسْوَدُ بْنُ عَامِرٍ، عَنْ سِنَانِ بْنِ هَارُونَ الْبُرْجُمِيِّ، عَنْ كُلَيْبِ بْنِ وَائِلٍ، عَنِ ابْنِ عُمَرَ، قَالَ ذَكَرَ رَسُولُ اللَّهِ صلى الله عليه وسلم فِتْنَةً فَقَالَ " يُقْتَلُ فِيهَا هَذَا مَظْلُومًا " . لِعُثْمَانَ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ مِنْ هَذَا الْوَجْهِ مِنْ حَدِيثِ ابْنِ عُمَرَ .
Narrated 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
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 49:104