Sunan Ibn Majah 173
It was narrated that Ibn Awfa said:
"The Messenger of Allah said: 'The Khawarij are the dogs of Hell.'"
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا إِسْحَاقُ الأَزْرَقُ، عَنِ الأَعْمَشِ، عَنِ ابْنِ أَبِي أَوْفَى، قَالَ قَالَ رَسُولُ اللَّهِ ـ ﷺ ـ " الْخَوَارِجُ كِلاَبُ النَّارِ " .
Classification
Sahih (Authentic) [Darussalam]
References
Sunan Ibn Majah 173
Sunan Ibn Majah Vol. 1, Book of Purification and its Sunnah, Hadith 173