AbstractPurpose of this study: This article discusses the basic principles that must be possessed by Muslim scholars to understand knowledge and its sources. The term ‘academic crime’ generally refers to the conduct of a few university lecturers, who violate the ethics and good practices of the teaching profession through the misappropriationof powers or by making false claims. However, academic crimes can also be classified as frauds in publications. Indeed, the ability to reason is one of the things that a person possesses. Nevertheless, it is not absolute, because the Quran and hadith are on the topmost. Methodology: This study uses the qualitative method and finds excessive rationality by the Anti-Hadith Group (AHG), leading them into a crime, i.e., rejection of the hadith as one of the sources of Islamic law. Findings: The revelation is believed to be true even though it contains metaphysics (al-ghaibiyyat) that cannot be logically explained. Furthermore, in rejecting hadith, .....