Sunan Ibn Majah 176
سنن ابن ماجه#176Hasanحَدَّثَنَا سَهْلُ بْنُ أَبِي سَهْلٍ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ أَبِي غَالِبٍ، عَنْ أَبِي أُمَامَةَ، يَقُولُ شَرُّ قَتْلَى قُتِلُوا تَحْتَ أَدِيمِ السَّمَاءِ وَخَيْرُ قَتْلَى مَنْ قَتَلُوا كِلاَبُ أَهْلِ النَّارِ قَدْ كَانَ هَؤُلاَءِ مُسْلِمِينَ فَصَارُوا كُفَّارًا . قُلْتُ يَا أَبَا أُمَامَةَ هَذَا شَىْءٌ تَقُولُهُ قَالَ بَلْ سَمِعْتُهُ مِنْ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ .
Abu Ghalib narrated that Abu Umamah said:"(The Khawarij) are the worst of the slain who are killed under heaven, and the best of the slain are those who were killed by them. Those (Khawarij) are the dogs of Hell. Those people were Muslims but they became disbelievers." I said: "O Abu Umamah, is that your opinion?" He said: "Rather I heard it from the Messenger of Allah
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: