Introduction: Most of Iranian populations, which are Muslim, attach great importance to their religious rituals in the natural unexpected disasters. Some groups of people paid more attention due to their religious commandments observation in disasters such as affected people, clergy, and relief workers. This research aims to study the needed religious commandments for both groups in natural unexpected disasters.
Methods: In this cross-sectional study, it was assessed people's needs for religious issues and also relief workers and the clergy in the affected areas after earthquake and flood by using questionnaires and descriptive method.
Findings: According to the most participants, knowing about the necessary religious issues was evaluated and considered as a "very important" item in the natural unexpected disasters and they "deeply" care about its compiling.
Conclusion: Collecting and compiling juridical problems and religious issues required in natural unexpected disasters are essential therefore appropriate measures should be taken.