Work Order workflow approval/reject comments where can i review these comments

Setup work order workflow for equipment work orders type '1'

create a new work order status show M* waiting for approval

using Work Center, to access the workflow for the work order

In the Workflow Approval screen, click on 'Reject' radio button.  and enter in Comments 'Remarks why this work order is rejected'

and click 'save'

the workflow access in Work Center is removed once the above is done.

Question is where can a user review the reject comments above?