restrict invoice with some distribution combination for account ,without having project number in ap

There is an new user requirement that whenever a user is creating and ap manual invoice and putting the line distribution combination , so whenever segment 3 i,e account segment is using 5101103 (exp) or 4101103 (subcons),they want the users to capture the project number in the line level column available for project number as mandatory.
or else if they are not putting any project number while using these 2 accounts in the combinations, they need an error or should reject the invoice or should fail them at validation, but the main objective is to restrict the invoice creation.
please suggest suitable option as was not able to find any suitable standard solution for the same case .