Restrict Internal Bank Account in table type DFF at invoice level

I am trying to add a table type DFF at invoice header level, where user should be able to select the internal bank account.

This will be used to print on Invoice pdf.

I am able to pull the Bank Account name successfully, but it shows accounts created for all the BU (even if user doesnt have access to the BU)

Please provide query to pull out filtered Bank account name based on invoice BU.