The RETURN statement gets sorted records from a sort operation.  It also
  returns merged records in a merge operation.

  Format -

   RETURN smrg-file RECORD [ INTO dest-area ]

      AT END stment [ NOT AT END stment ]

      [ END-RETURN ]

1  –  smrg-file

  is the name of a file described in a sort-merge file description (SD)
  entry.

2  –  dest-area

  is the identifier of the data item to which the returned smrg-file
  record is moved.

3  –  stment

  is an imperative statement.