Author: Shaykh Dr. Saalih Bin Fawzaan al Fawzaan
Publisher: Authentic Statements (June 2013)
Pages: 384 Binding: Paperback
Description from the publisher:
So these are called Usool because other than it, from the affairs of the religion, are built upon them. Due to this, they are called Usool; because the matter of the religion is built upon them and all of the religion revolves around these three principles.