Print the financial voucher for a specific sales order

Hi Gurus

When the time i post the invoice for a sales order, there are some financial vouchers created, in order to make it simpler, i would like to add a menu item on the sales order form. i only have to click the menu item then the SSRS will render the “Financial Voucher” that related to this sales order.

My question is how can i get all the “Financial Voucher” records that related to the current sales order ?

many thanks.