The sale of a book that permits music

Question:
He says: Honorable Shaykh, may Allah grant you success, I found a book in one of the bookstores about music and its ruling in Islam. Its author permits music and says that there is no definitive text regarding its prohibition. I advised the bookstore owner not to sell that book, but he said that he had asked one of the students of knowledge, and he said there is no objection to selling this book because it is a jurisprudential study. Is his statement correct?

Answer:
As long as he says there is no objection to music and the author has permitted music, it is not permissible to sell this book. This is because it opens the door to evil for people, as it legalizes what is forbidden. Therefore, it is not permissible to sell this. And his statement that there are no definitive texts—what are the definitive texts in his view? Is not the speech of the Messenger definitive? Is not the speech of Allah definitive? The Messenger (peace and blessings be upon him) prohibited musical instruments and flutes, and prohibited singing and entertainment. If the speech of the Messenger is not definitive, then whose speech is definitive? Yes.