1. What is the ruling on past prayers if a mosque was found to deviate slightly from the qiblah?
- The past prayers are valid, but the rows should be corrected for future prayers. (correct answer)
- All previous prayers must be repeated.
- The deviation is valid only if it is exactly 17 degrees or less.
- Future rows should deliberately remain off-course.
Why
For those far from the Ka‘bah, the requirement is to face its direction, not necessarily the exact physical structure. A slight deviation from the qiblah does not invalidate past prayers, especially when people were trying to face the proper direction. However, once the correct direction is known, the mosque rows should be corrected and people should not deliberately continue deviating from the qiblah. Putting a line or other marker to show the proper direction is recommended.