Hello @Akshay Tanpure
Welcome to the Atlassian community.
Jira does not natively support creating JQL that will compare one issue date field to another issue date field.
You could use Automation for Jira to do that comparison and set a custom field in the issue to note if the issue was closed in less than or more than one week, and then base your JQL on that custom field.
Or you could look for a third party app to add to your system that could add the JQL functionality you need.
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