Report Level we need link between Purchase Order and Transfer Order

1.Once we create a purchase order 20 quantity and received totally. Next we do Transfer Order from one inventory to another inventory using shipment as a same purchase Order quantity.

2.We can't find any tables or bridge table to join between both the purchase order and transfer Order. Cause we need both purchase order and transfer order in a single report.

So Kindly, We need a solution for this.