Customer is having the requirement that like suppose parent record having the 10 child record then f

Customer is having the requirement that like suppose parent record having the 10 child record then first 5 should on first page and remaining 5 will be on second page with parent record too.

Customer has the invoice num that have 10 lines record and that 10 lines record is child record and that invoice num details like check_id ,code,invoice_date,invoice_num etc. i.e. parent record.