Does prayer require the feet to be joined together, or merely to be very close, and what should we do with someone who exaggerates in joining or moves too far away?

Straightening the rows is achieved by truly, not merely proximately, aligning shoulder to shoulder and foot to foot. This alignment should be gentle and without exaggeration, so as not to harm the worshipper or distract them from devotion, for the Sharia has prohibited both excess and negligence.