Do some groups follow the Shafi'i school in some issues, while disagreeing with it in others?

Question:
He says: Honorable Shaykh, may Allah grant you success. Some Islamic groups follow the school of al-Shafi'i (may Allah have mercy on him) in the issues where it agrees with them, but in other issues they do not follow this school, such as raising the voice in collective supplications and celebrating the Mawlid. So, can it be said that they are Shafi'is in Islamic jurisprudence?

Answer:
I told you that many of the later followers of the four schools follow them only in Islamic jurisprudence. As for creed, they are not on the creed of the imams of the schools; they may be Ash'ari, Maturidi, or Mu'tazili. That is why you find in his biography: "Shafi'i in school, Shadhili in method." I do not know what happens; it becomes confusing. It becomes confusing. Yes. The true Shafi'i is the one who follows the Shafi'i school in both Islamic jurisprudence and creed. That is the Shafi'i. The same applies to the Hanafi, the Maliki, and the Hanbali: they must follow the methodology of their imam in both creed and Islamic jurisprudence. As for the one who takes some of it and leaves some, he is not attributed to that imam. Yes.
Yes, you must not take the statements of the imam as a settled matter. If there is something in them that contradicts the evidence, meaning it contradicts the proof, it is not permissible for you to take it. Rather, you take what is established by the evidence, even if it is not in the school of the imam you follow. You take what is established by the evidence. The imam himself advises this.
Al-Shafi'i (may Allah have mercy on him) said, "If a hadith is authentic, then it is my school." He also said, "If my statement contradicts the statement of the Messenger of Allah (peace and blessings be upon him), take the statement of the Messenger of Allah and cast my statement to the side." So it is not blind following, nor is it deviation, but rather balance in the matter. Yes.