This thesis aims at introducing the jurisprudential Judgments of Shaykh Muhammad ibn Yusuf Atfayyesh in the acts of worship through his book " Wafa Al Damana Bi Ada Al Amanah " compared to his other book " Sharih Al Neel wa Shifa Al Aleel ". The book of " Wafa Al Damana Bi Ada Al Amanah " contains more than three hundred Jurisprudential Judgments of its author. This thesis seeks to highlight his Jurisprudential Judgments in the acts of worship by answering the following questions : 1. What is the meaning of " Jurisprudential Judgments? " 2. What are the Jurisprudential Judgments choices in his book " Wafa Al Damana Bi Ada Al Amanah " in the acts of worship? How do they differ from those in the other book and why? 3. What is the impact of the presence of the legitimate text on the Jurisprudential Judgments of the author? 4. What is the heuristic approach chosen by the author in the book " Wafa Al Damana Bi Ada Al Amanah? " ح To answer these questions, the researcher has extrapolated the book of " Wafa Al Damana Bi Ada Al Amanah " and extracted the Jurisprudential Judgments choices of the author, and then compared with the corresponding book " Sharih Al Neel wa Shifa Al Aleel " , and concluded a set of results, including: 1. Jurisprudential Judgments is: " the sought for a judgment in incidents faced the Jurisprudential scholars by exerting their effort to seek the truth. " 2. The number of Jurisprudential issues in which Sheikh Atfayyesh stated his opinion in the worship section (98) issues, and his diligence matched in " Wafa Al Damana Bi Ada Al Amanah " and " Sharih Al Neel wa Shifa Al Aleel " in (33) of them, and differed in (6) issues between the two books. He stated (59) Jurisprudential choices in " Wafa Al Damana Bi Ada Al Amanah " whereas he did not state his opinion in the other book on the same issues. (20) issues were just mentioned in the book " Wafa Al Damana Bi Ada Al Amanah ". 3. The presence of the legitimate text in " Wafa Al Damana Bi Ada Al Amanah " is the most important reason for the abundance of jurisprudence weightings in it, and the most important reasons for the difference of jurisprudence between the " Wafa Al Damana Bi Ada Al Amanah " and and " Sharih Al Neel wa Shifa Al Aleel " is that the author got these legitimate texts after finishing his book " Sharih Al Neel wa Shifa Al Aleel ". Yet, there are minor effects of the jurisprudential branches in the Ibadism sect even after this closeness with Sunni books .