This community service activity was motivated by the importance of strengthening the religious attitudes of the community through routine, simple, and relevant religious activities. Although the community of Nagari Guguak Malalo, Jorong Duo Koto, regularly performs the Fajr prayer in congregation at the surau, there is a need for religious guidance that can strengthen the understanding and practice of Islamic values. This activity aimed to develop the community’s religious attitudes through the implementation of Kultum Ba’da Subuh, a short religious sermon delivered after the Fajr prayer. The activity employed the Service Learning (SL) approach, which integrates community service with students’ learning experiences. It was conducted for 30 days at a surau in Jorong Duo Koto, Nagari Guguak Malalo, with university students participating as activity facilitators and the local community as the target participants. Data were collected through observation, informal interviews, and documentation, and were evaluated qualitatively based on attendance, attention, participation, and community responses during the activities. The results showed that Kultum Ba’da Subuh served as an effective means of religious guidance that supported the development of the community’s religious attitudes. The delivery of concise and contextual religious materials strengthened Islamic knowledge and encouraged the community to apply religious values in daily life. The activity also provided students with direct experience in community-based learning and service. Therefore, Kultum Ba’da Subuh contributes to strengthening the religious development of the community through simple, routine, and participatory religious activities