The Ruling on Referring to the Scholars to Verify Adherence to the Book and the Sunnah

Question:
The questioner says: Honorable Shaykh, may Allah grant you success, there is no doubt that judgment and settling matters between people is by the Book and the Sunnah, but the problem is that everyone says their source is the Book and the Sunnah. So how do we verify this adherence? And how do we distinguish the one who is right from the one who is wrong?

Answer:
What is the issue regarding the call to Islam? Everyone says, "I am in agreement with the Book and the Sunnah." One does not accept a call that is presented to the specialists, the firmly grounded in knowledge, who apply his statement to the Book and the Sunnah and rule upon it, because those who are qualified to refer to the Book and the Sunnah are the scholars. It is possible for one to say, "I referred to the Book and the Sunnah," and then build upon his own understanding or his own desires. Rather, one should refer in this matter to the people of knowledge and the specialists. Yes.