Since there is only one universe for which that particular object has to be searched in reports where it is used, check this utility (designed by Dwayne Hoffpauir) which lists series of objects in a set of reports kept in a file folder.
You can either manually search for the object by using filter after the above macro is run or enhance it to show a message box when that particular object in question is found.
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haider 
(BOB member since 2005-07-18)