In The Name of Allah, The Most Merciful, The Bestower of Mercy.

Imam Ibn Battah, may Allah have mercy upon him, said:

Know, O my brothers! I have pondered over the reason that expelled a people from the Sunnah and the Jama’ah, compelled them to bidah and ignominy, opened up a door of trial to their hearts and prevented them from the light of truth that enables a person to make good judgements; thus, I found that (coming) from two angles: (Unnecessary) research and debate, asking too much concerning that which is of no benefit- (matters that are) neither harmful to an ignoramus nor beneficial to the believer’s understanding. The other (reason) is sitting with (a person) whose Fitnah one is not safe from and (is a cause of) corrupting the heart of the one who accompanies him.

Al-Ibanah Al-Kubra 1/390