صَحِيحُ مُسْلِمٍ
Sahih Muslim 1068 b
The Book of Zakat
The Khawarij are the most evil of people and of all creation
وَحَدَّثَنَاهُ أَبُو كَامِلٍ، حَدَّثَنَا عَبْدُ الْوَاحِدِ، حَدَّثَنَا سُلَيْمَانُ الشَّيْبَانِيُّ، بِهَذَا الإِسْنَادِ وَقَالَ يَخْرُجُ مِنْهُ أَقْوَامٌ .
This hadith had been transmitted by Sulaiman Shaibani with the same chain of narrators (and the words are)," There would arise out of (this group) many a group"
Sahih Muslim, 1068 bSahihصحيح