hi,
i agree with Krishna in VBFA table you can get sales order number from VBELV field.
you can also find this delivery number's billing number just it below row which is by item Subsequent doc. cat. (M) field filter.
if you want to report view for all sub sequent view, then you can use query builder by SQ02 and SQ01 for
below table join:
VBFA-VBELN = VBRP-VGBEL
thanks
Md. Enayet Hossain