Is prioritizing the statement of a specific scholar over the statements of other scholars considered an excess?

Question:
A questioner says: Some students of knowledge hold that if a particular scholar says something, it is the one to be prioritized, so they do not advance or delay anything except according to his statement. Is this an excess?

Answer:
Yes, a scholar’s statement is not accepted unless he has evidence from the Book and the Sunnah. As for what has no evidence, it is left alone, even if it is from the words of a scholar. Al-Shafi'i (may Allah have mercy on him) said: If my statement contradicts the statement of the Messenger of Allah (peace and blessings be upon him), then cast my statement to the wall. This is Imam al-Shafi'i (may Allah have mercy on him). So what about others besides him? Yes.