Hi Kamal,
When you do premature settlement for a settled contract it will create two transactions one Premature settlement (transaction Type 105) and another Netting ( transaction Type 103 ), this two transactions are linked to main contract and main contract number will be updated in the field VRFHA ( Table - VTBFHA).
If you want to generate premature settlement report you can see that with standerd report only with transaction type 105 or if you want see the all deals linked for this premature settlement then you can develop Z Report with Reference transaction field.
Hope answered your query.