yes you can retrieve the source by reading the source physical file and the member through a CLP or a RPG program. YOu can retrieve all the lines there one by one.
hope this will help.
If source exists and the source info is stored in the object description:
That’s one simple way to see what it’s supposed to be.
However, I’d be very wary of relying on the source info if I was needing to determine actual formatting. Instead, I’d call the Retrieve Display File Description (QDFRTVFD) API to find out what the DSPF itself said. The source might have been modified and not yet compiled or any number of other things could have happened.