Here is the latest exchange about whether or not I know if Prophet fasted for exactly 30 days in Ramadan.
Brother,Muslim First wrote:Br. It is your claim that fast in Ramadaan is fixed, that is 30 days, not mine.
You have not been reading my posts carefully. Please do.
My claim is that the number of fasts in Ramadan are 'fixed' according to ayat 2:184. The ayat does not specify that number. It is up to us to determine whether we want it to be 29 or 30. They cannot be exactly 29 or exactly 30 as I have explained countless times. That is due to orbits of both the earth and the moon.
For reasons best known to Imam Jafar al-Sadiq, Bohras keep the number of fasts at 30.
Other Muslims take the ayats of sighting the moon literally and wait for their leaders to actually 'see' the crescent to decide o the first day of the lunar month. (Mind you they do not individually look for the crescent). Quran tells us that orbits are fixed by Allah. And He has given us the intelligence to predict the new moon very accurately.
The issue with the Hijri/Misri calendar is that in it Lunar and Solar reckonings are mixed up. Muslim months are based on Lunar. Their days are based on Solar. So the calendar deals with discrepancies by adjusting days of a month in what is called a Leap Year. Misri Calendar does that fro Dhul Hajj.
I do not know if Prophet had the knowledge of modern astronomy. I do not know if he fasted 29 days one Ramadan and 30 days another. All we need to be concerned with is that Quran tells us to fast for a 'fixed' number of days. If you follow moon sighting, a method prone to human error, then you can fast when you see the moon and sometimes even if you do not see the moon you will end your fasting when you have completed your 30 fasts. Where then does your insistence on sighting the moon disappear? Your explanation would be that that is because of the knowledge we have of the orbits of the moon and the earth. And that is exactly what the Misri calendar does.