From spdoc.txt:

sprepsql.sql - Reports on a single hash_value

Once the instance report has been analyzed, often there are high-load SQL statements which should be examined to determine if they are causing unnecessary load.

The SQL report sprepsql.sql, displays statistics, the complete SQL
text and (if level 6 snapshot has been taken), information on any SQL Plan(s) associated with that statement.

The SQL statement to be reported on is identified by the
statement's Hash Value (which is a numerical representation of the statement's SQL text). The Hash Value for each statement is
displayed in the high-load SQL sections of the instance report.

That is:
You use spreport.sql to get the instance report. From it you can
find "Hash Value".

Hope it helps.