This article examines Imam Syafi'i 's thoughts about determining the beginning of the Hijriyah month without using reckoning. The research method used is library research with a socio-political approach. Primary data is taken from the books by Imam Syafi'i and the scholars of the Shafi'i sect. Data were analyzed using interpretation, deductive-inductive, and historical continuity techniques. The findings of this study are that Imam Syafii determines the beginning of the Hijri month by sighting and the testimony of two fair people. If this is not fulfilled, Imam Syafii determines it with stigma, namely the fulfillment of the day in the month with 30 days. The factor of not using reckoning is due to the tendency of Imam Syafii as Nashir al-Hadith, so the meaning of Imam Syafii for " faqduru lah "is not oriented towards rationality with the science of reckoning which has a different meaning, compared to the meaning of al-hadith bi al-hadith as a form taking one hadith with another hadith that is considered closer in meaning. The socio-political conditions at that time also influenced because the rationalists had succeeded in getting closer to him; the government is currently intensively carrying out scientific reforms, and they are always spreading Inkar as-Sunnah teachings which can threaten the position of sunnah. So that the spirit in the development of science, including reckoning at that time, was more dominant in its rationality than the Syar'i element
Copyrights © 2023