Jami` at-Tirmidhi 1981
جامع الترمذي#1981Sahihحَدَّثَنَا قُتَيْبَةُ، حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ مُحَمَّدٍ، عَنِ الْعَلاَءِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " الْمُسْتَبَّانِ مَا قَالاَ فَعَلَى الْبَادِي مِنْهُمَا مَا لَمْ يَعْتَدِ الْمَظْلُومُ " . وَفِي الْبَابِ عَنْ سَعْدٍ وَابْنِ مَسْعُودٍ وَعَبْدِ اللَّهِ بْنِ مُغَفَّلٍ . قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ .
Abu Hurairah narrated that the Messenger of Allah said:"(The burden of) what is said by the two who vilify each other is upon the one who initiated it, as long as the one who was wronged does not transgress
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: 27:87