The source's row rules are:
• 1 male follower → stands on the Imam's right, with the heel not ahead of the Imam.
• More than 1 follower → stand behind the Imam.
• In the classical ordering of rows: adult men, then boys, then the Khuntha category, then women.
The ordering is a row-formation rule; it should not be described as if every departure automatically destroys the entire congregation without examining the specific legal issue.