Benefit: Speaking Out against Innovators Is Hateful, Destructive and a Waste of Time?
In the Name of Allāh, the Ever Merciful, the Bestower of Mercy
Shaykh al-Islām Ibn Taymīyyah, raḥimahullāh, said:
And the likes of the Imāms of innovations from the people of statements which contraḍīct the Book and the Sunnah or acts of worship which contraḍīct the Book and the Sunnah, clarifying their condition and warning the Ummah against them is obligatory by agreement of the Muslims. This is to the point that it was said to Aḥmad Ibn Ḥanbal: ‘Is it more beloved to you that a man fasts, prays, and makes iʿtikāf or speaks about the people of innovations?’ He said: ‘If he stands and prays and makes iʿtikāf, then it is only for himself. If he speaks concerning the people of innovations, then it is for the Muslims; so this is better.’
So he clarified that the benefit of this is general for the Muslims in their religion, and it is from the perspective of jihād in Allāh’s path. Hence, (innovation brings about) the purging of Allāh’s path, His religion, His methodology, and His legislation. Warding off the injustice of these (innovators) and having enmity towards them due to that, is a communal obligation by agreement of the Muslims. Were there not one who Allāh establishes to defend (the religion from) the harms of these people then the religion would have been corrupted and its evil would have been greater than the evil of being seized by the enemy from the people with whom there is war. For these people, when they seize, they do not corrupt the hearts and that which they contain from the religion except at the end. As for those (innovators), they corrupt the hearts from the onset.1
 Majmūʿ al-Fatāwá, 28/231-232.
Translation by Raha Batts