Al-Khawarij met Abdullah — the son of Khabbab bin Al-Aratt, a noble companion of the Messenger Salla Allahu Alayhi Wasallam, and seized him. They asked him, “Who are you?” He replied, “I am Abdullah bin Khabbab,.” They said, “Narrate to us a Hadith that you heard from your father who related it to the Messenger Salla Allahu Alayhi Wasallam.” He said, “I heard my father say, ‘The Messenger of Allah, Salla Allahu Alayhi Wasallam, said, ‘There will be a Fitnah (calamity and division) in which those who sit idle are better than those who walk, and those who walk are better than those who rush. Therefore, whoever has no choice but to kill or be killed, let him be killed and let him not be the killer.’” They asked him, “What do you say regarding Abu Bakr and Umar?” Abdullah said good words of praise regarding them. They said, “What do you say with regards to At-Ta’hkim (when Ali and Mu’awiyah reverted to some of the companions to judge between them in their dispute, according to the Quran and Sunnah)?”
He said, “I say that Ali has better knowledge in the Book of Allah, is more careful with the religion, and has more wisdom than you!”
Then they took him to a river and slaughtered him as a person would slaughter a goat, then killed his pregnant wife along with stabbing her belly.
A few of the shuyookh share this story often to show how sick these people are. For that reason, the Prophet sallahu alayhi wa salam, described
in the hadith of Abu Dharr in Muslim as
” هُمْ شَرُّ الْخَلْقِ وَالْخَلِيقَةِ ”
They are the worst of creation.
Ash-Shaykh Abdul-Muhsin al-Abbaad hafidaho-Allah was asked the following question:
يقول البعض إن تنظيم القاعدة المعاصر خوارج ويقول آخرون هم مجاهدون فما رأيكم ؟
Some say that al-Qaeda are the khawaarij and they say the rest are performing Jihaad. So what is your opinion?
نعم مجاهدون في سبيل الشيطان
Yes, they are doing Jihaad in the path of the devil!
[Taken from his Sharh on Sunan Ibn Maajah]
He, hafidaho-Allah also, mentioned:
“هم شرار الخلق والخليقة”، يعني هم من شرار الخلق والخليقة،
” They (i.e khawaarij) are the worst of creation” meaning they are from the worst of creation.
AbdulFattaah Bin Uthman