https://abukhadeejah.com/the-three-fundamental-principles-of-islam-and-their-proofs-ebook-pdf/
Book and Lined Study Guide: "The Three Fundamental Principles of Islam and their Proofs" (Thalāthat ul-Usūl wa Adillatuhā): by Shaikh Al-Islām Muhammad Ibn Abdul-Wahhāb (PDF version)