This week we will learn that certain sacrifices (notably chatat and pesach) are invalid if offered shelo lishman (not for its own sake), deriving this from scriptural links to shelamim and exploring when a Pesach defaults to a shelamim. The Gemara then probes whether improper intent in one avodah (service) (e.g., shechita) for another avodah (e.g., zerikah) disqualifies, and analyzes the principles of dichuy (permanent rejection of a korban).
For more info or to visit the main shiur page please visit https://webyeshiva.org/course/daf-yomi-one-week-at-a-time-zevachim/