Discipline is very important in everyday life, both discipline in the family, community or school environment. Discipline is very closely related in the school environment, especially student discipline, because with the discipline, the teaching and learning process will run as expected. The purpose of this study was to determine the discipline of Al-Rifa'ie Gondanglegi High School students in Malang, to know mandatory prayer programs in congregation, to know the inhibiting factors for the implementation of compulsory prayer programs in congregation, and to know changes in the character of discipline by compulsory prayer in congregation. In this study the authors used a qualitative approach. In collecting data, the writer uses interview, observation, and documentation methods. Technical analysis of data, namely in the form of written and spoken data from observed sources. The results of this study include: enthusiasm and enthusiasm of students in participating in compulsory prayer programs in congregation, awareness programs, mentoring programs, mobilization and orders, habituation programs, motivational programs, advice programs, coursework programs (supervision/checking), and attendance program. The prayer performance is marked with a murotal audio sound and the bell rings three times. Changes in the character of student discipline can be seen from their prayers, because the life of a Muslim can be seen from his prayer, someone if his prayer is perfect then his heart will be clean, that clean heart always wants to do good continually.

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