Shaykh ul-Islām Ibn Taymiyyah (رحمه الله) said [1]
“...And for this reason, the leading Scholars of Islām are agreed that these severe innovations are more evil than sins, as those who commit them believe that they are sins.
And this is how the Sunnah of Allāh’s Messenger (صلى الله عليه وسلم) traversed in that he ordered the fighting of the Khawārij, those who departed from the Sunnah, and (on the other hand) ordered with patience upon the tyranny of the Rulers, and their oppression, and also to pray behind them, despite their sins.
And he also testified for one of his Companions who persisted in some sins that he loves Allāh and His Messenger,[2] and he forbade the others from cursing him. And (yet) he informed about Dhul-Khuwayṣarah (the father of the Khawārij) and his associates that they leave Islām like an arrow leaves the bow, despite their great awe, fear (waraʿ) of Allāh, and their (excessive) worship.
And Allāh has said in His Book
“But no, by your Lord, they can have no faith, until they make you (O Muḥammad) judge in all disputes between them, and find in themselves no resistance against your decisions, and accept (them) with full submission.”[3]
Hence, everyone who exited from Sunnah of Allāh’s Messenger (صلى الله عليه وسلم), and His Sharīʿah, then Allāh has sworn by way of His Sanctified Self, that he does not believe until he is satisfied with the judgement of Allāh’s Messenger (صلى الله عليه وسلم) in every dispute that arises amongst them concerning the affairs of the world and the religion, and until their does not remain any resistance in their souls. And the proofs, indications in the Qurʾān to this principle are many.
Shaykh ul-Islām Ibn Taymiyyah has explained exactly what the Sunnah has come with, which is obedience in only that which is good to those sinful, tyrannical kings who do not judge by the Book and the Sunnah, and who oppress their subjects and confiscate wealth. The Khawārij revile this and call it Irjāʾ and call those who call to this Sunnah as Murjiʾah. However, Ahl al-Sunnah condition this obedience to only what is obedience to Allāh without making this obedience to be absolute, in all affairs.
Had the ignoramuses not had this evil suspicion towards the Sunnah, they would have realised that it is indeed the truth and what contains betterment and good for the Muslims, since having patience under this situation is better then living in chaos, bewilderment and fear when civil strife occurs with widespread bloodshed and the roads cut off. But the Khawārij are an ignorant and foolish people whose fear of Allāh is built upon ignorance and not knowledge, and who lack fiqh in the religion as the Scholars of Ahl al-Sunnah have commented about them.
Likewise, making Jihād against the Khawārij, by pen, tongue and sword (when they come out in revolt, and when there is ability), even if they be the most pious, engrossed in worship, remembrance, the night prayer, and speak with the best speech of creation, and claim that the Qurʾān supports them, and other such affairs since the Khawārij cause destruction to the worldly and religious affairs. The Khawārij revile this and call it khurūj against the Callers (meaning, their figureheads who propound these ideological doctrines), and this is a revilement of the Sunnah.
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