Musaafir mistakenly performing four rakaats fardh salaah
Q: I'm little confused regarding salah which we performed during our stay in Makkah and hajj. We followed one book which had mentioned that your stay in Makkah, if less than 15 days then you should perform qasar salah. Also during hajj days if your stay till 7th Zil haj is less than 15 days you need to do qasar in hajj.
1. We started from India on 4th Aug 4pm and reached our hotel on 5th 00:30. As per booking, we calculated our stay as 14 days (5 to 18) and we had intention that on 18th night or 19th morning we will leave for Mina. We left Mina 19th morning 03:00am. We offered qasar all in Makkah and during haj. Is it correct?
2. How are 15 days calculated. Is it 24 hours *15 days?
3. If some musafir prays alone and recites all 4 rakats and after 2 days remembers he is musafir and then corrects his salah to 2 rakats. What is ruling on it?