This course studies the concept of legal maxims in Islamic Jurisprudence, the differences between this concept and the concept of al-Nazariyyat Fiqh i.e. the legal theory, and al-Dabit al-Fiqhi i.e. a type of legal maxims that are limited to a specific subject of Islamic Jurisprudence. In addition to this, it clarifies the evidence of the legitimacy of the legal maxims and their importance. Moreover, it provides an explanation to a group of these maxims, such as “al-Yaqin la Yazul bi al-Shakk” which means, “The certainty is not disregarded for a doubt”. “’Idha Ijtama‘ al-Mubashir wa al-Mutasabbib Yudaf al-Hukm ’ila al-Mubashir” which means that “If the committer of a loss, damage or crime joins the causer of it in committing it, the liability is referred to the former party”. “’Idha Ta‘arad Mafsadatan Ru‘i A‘zamuhuma Darar bi Irtikab Akhaffihima” i.e. “If two evils happen with each other, and it is impossible to avoid both of them, the major one of them must be avoided by enduring the minor one of them”. Finally, this course sheds light on a group of al-Furuq al-Fiqhiyyah i.e. the differences between the legal rulings, from the book of al-Qurafi which is entitled al-Furuq.