This is a Third-party Addon.
Please use carefully on data that is backed up, and help make it better by reporting any comments or problems to the author, or issues to the bug tracker
The Sources and Citations Report addon provides a source and citation report with notes.
Select Reports > Text Reports > Sources and Citations Report... from the menu.
- help button goes to https://gramps-project.org/wiki/index.php?title=Gramps_5.1_Wiki_Manual_-_Reports#Sources_and_Citations_Report
- Github code SourcesCitationsReport