This document provides information on the process of vouching in accounting. It defines vouching as comparing accounting entries to supporting documents like receipts. It then discusses vouching for different types of cash transactions recorded in the cash book, including opening balances, cash sales, payments to creditors, and payments for expenses. For each transaction type, it lists the supporting documents that should be examined to verify the entry, such as cash memos, invoices, pay stubs, and receipts. The document provides guidance on steps an auditor should take to properly voucher transactions during an audit.