The Ruling on Endowing a Library, Cassettes, and What Is Written in the Seal

Question:
I have a library containing religious books and cassettes with lessons by scholars, and I want to endow them for Allah the Exalted. I also want to place a seal on them. What should I write in this seal so that it is an endowment for Allah the Exalted? And am I allowed to complete the place where I endowed the books, or what should I do? May Allah reward you with good.

Answer:
Yes, all of this does not preclude us from endowing these books and cassettes after inspecting them, because many cassettes contain extraneous material. They contain things with scorpions, snakes, and other harmful elements, and they contain things that have no value, empty talk with nothing beneath it. However, if the cassettes are from the words of the people of knowledge, are beneficial, and contain legal rulings, then they are good. They are like a book, or even better. So endow them and write on them "Endowed for Allah." The writing you write should say "Endowed for Allah," and the ruling on them is that they are endowed for Allah. This is sufficient. Yes.