BPM Workflow Invoice Approval - Standard Report

Hi,

Scenario:

During the workflow of invoice approval, when one of the approver has delegated the authority to someone else in organization

Ask:

Business would like to know the seeded report using which the details of exact approver with whom the invoice is pending for approval could be fetched

As the requirement is to know the name of the person with whom the invoice is actually pending for action (approve / reject / request for more information) and not the details of the person who has delegated this to someone else

Which standard (seeded) report could be leveraged for this?

Thanks,

Saurabh Singhal.