This analytical study, entitled "Creed's Rules of Imam Noor Al-Din Al-Salimi's through his book (Mashariq Anwar Al'uqool) aims to bring a light to the creed rules of Imam Noor Al-Din Abdullah Bin Hamaid Al-Salimi (died in 1332 Hijri) through book (Mashariq Anwar Al'uqool). This was carried out via the inductive, descriptive, and deductive methods with the intent to go deep into the Imam's beliefs, study them, and analyse them in accordance to the issues arising from different sections of creed. The study comprised an introduction and three chapters. The introduction included a definition of creed rules, a biography of Imam Noor Al-Din Al-Salimi, and a brief insight into his book (Mashariq Anwar Al'uqool). The first chapter, entitled Imam Al-Salimi's Sources and his Argumentative Pathways in Abstraction, outlined the Imam's main sources, his arguing methods in tackling creed's issues, and his ways of dealing with them. The second chapter reveals creed rules in the realm of theology. The third chapter examined creed rules in the prophecy and audibility fields. The study drew major conclusions, chief among which is the fact that revelation sources constituted the basis for Imam Noor Al-Din Al-Salimi in his creed abstractions; and that the mind does not legislate, it is rather an argumentative pathway that supports revelation sources. It was pointed out that Noor Al-Din Al-Salimi followed in the footsteps of the method of referring 'unspecific' verses to the 'precise' ones (in the Qur'an) to avoid any contradiction in the divine texts, which was at the origin of disagreements among scholars in many issues related to creed. Furthermore, the study also managed to identify twelve creed rules unearthed from one hundred and fourteen creed rulings which were researched within fifty-five creed issues mostly found in the book's second chapter.