What are the Shariah guidelines for opening a bookstore? What is the ruling on selling books that contain doctrinal deviations, such as Ash'ari books, or literature and story books that have problematic content? What should the bookstore owner do if he is unaware of the content of the books? What is the ruling on selling books that contain minor errors but are predominantly beneficial?

The most important regulations for opening a bookstore are: not selling forbidden books such as books of disbelief (kufr), magic, and philosophy, and these must be destroyed. It is permissible to sell beneficial books such as those on Islamic sciences, permissible literature, poetry, medicine, and arithmetic. The seller is not required to read the entire book; a general knowledge of its benefit suffices.