What is the method of verifying the beginning of lunar months?
The authentic Hadiths of the Prophet (peace be upon him) have indicated that whenever the crescent is observed by a trustworthy person after sunset, on the night of the thirtieth of Sha`ban or Ramadan, then the vision should be recognized. Accordingly, the beginning of the month is to be recognized regardless of the period that the moon remains after sunset, whether it is twenty minutes, more or less, for nothing has been mentioned in any of the authentic Hadiths (Part No. 10; Page No. 92) indicating a specific time [in minutes] for the moonset after sunset. The Council of Senior Scholars in
the Kingdom of Saudi Arabia have also agreed to what we have mentioned.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.