Is hating scholar opinion kufr? Example, Scholars differ in the ruling of music, then there are people who are not scholars who hate one of their opinions, is he kufr?

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.

Merely disliking the opinion of a scholar is not considered an act of disbelief. Rather, what constitutes disbelief is to dislike the indisputably established provisions of the Sharee’ah and hold them in contempt, such as the obligation of prayer and the prohibition of Zina (i.e., illicit sexual intercourse). Allah, The Exalted, Says (what means): {That is because they disliked what Allah revealed, so He rendered worthless their deeds.} [Quran 47:9]

We advise you to disregard such satanic whisperings, refrain from giving them any consideration, and strive to seek treatment for them.

Allah knows best.