Imam al-Baghawi (d. 516H) in his book “Sharh as-Sunnah” while commenting on the hadith about the Khawarij:
In other words, even if the Khawarij read the Qur’an, pray tahajjud, fast every week, fight their self declared “jihad”, or assume about themselves that “at least they have good intentions and calling to Tawhid and Shariah”, it does not matter in light of the religion that Allah has sent down and their deeds are deemed worthless.
And with regards to the description that the Khawarij “pass through the religion”, Imam al-Baghawi explains that “this attribute of the Khawarij is because they denounce the Imams and view people with the sword”.
Ibn Kathir said:“If the Kharijites ever gained power, they would corrupt the entire land,
Iraq and .
They would not leave a boy or a girl or a man or a woman, for in their view the people have become so corrupt that they cannot be reformed except by mass killing.” Syria
قال ابن كثير إِذْ لَوْ قَوُوا هَؤُلَاءِ لَأَفْسَدُوا الْأَرْضَ كُلَّهَا عِرَاقًا وَشَامًا وَلَمْ يَتْرُكُوا طِفْلًا وَلَا طِفْلَةَ وَلَا رَجُلًاوَلَا امْرَأَةً لِأَنَّ النَّاسَ عِنْدَهُمْ قَدْ فَسَدُوا فَسَادًا لَا يُصْلِحُهُمْ إِلَّا الْقَتْلُ جُمْلَةً
[10/584 البداية والنهاية]
Posted by ADHM