In this study, the studies of Ebu Davud’s es-Süneni and Mâce's es-Sünenin were investigated by the muhaddis. These two works from Kütüb-ı Sitte, although there are many hadiths in them, some of the hadiths have been exposed to the ciritisizm. Hadith imams subjected the hadiths to many critiques within the rules of Cerh and Ta'dil from the period of tedvin in place to distinguish between the subject matter and the weak rumors, and managed to prevent such verses from mixing with the real hadiths by revealing their infirmities. In this context, different studies have been carried out related to many hadith books. However, there was no satisfactory study that dealt with the text and isnad of the verses that were discussed in Ebu Dâvûd's es-Süneni and Ibn Mâce's es-Sünenin. Therefore, in this study, such periods in both works were dealt with separately and the opinions of the muhaddis on the relevant verses were evaluated and a detailed examination was conducted on the subject. In this context, the opinions of the scholars regarding the hadiths in both works and which were evaluated by scholars as saying that the subject matter was the subject matter were conveyed, and the opinions of the scholars about these verses were investigated and put forward within the framework of the rules of Cerh and Ta'dil science. In the study, it was acted within the framework of a critical approach based on research. In the introduction of the study, the concepts of circumcision, cash and subject matter related to the conceptual framework are discussed. In the first chapter, a general information about Ebu Dâvûd's life and reputation was given and then evaluated by considering the verses that the muhaddis had in this work. In the second chapter, after an overview of Ibn Mace's life and reputation, the verses that were evaluated by scholars were evaluated in this work. In addition, our opinions about the issues reached in the study were shared. The study ended with the mention of important issues reached in the research.