Raba'i bin Harash bin Jahsh ربعي بن حراش · Fasting (Kitab Al-Siyam)

The Messenger of Allah (ﷺ) used to count the days in Sha'ban in a manner he did not count any other month; then he fasted when he sighted the new moon of Ramadan; but if the weather was cloudy he counted thirty days and then fasted.

Husayn ibn al-Harith al-Jadli from the tribe of Jadilah Qays said: The governor of Mecca delivered a speech and said: The Messenger of Allah (ﷺ) took a pledge from us that we should perform the rites of hajj after sighting the moon. If we do not sight it and two reliable persons bear witness, we should perform the rites of hajj on the basis of their witness. I then asked al-Husayn ibn al-Harith: Who was the governor of Mecca? He…