F5 LTM Virtual Server IP NAT Configuration

If from firewall side needs to do NAT Server Mapping between My Virtual Server IP and One public IP and the connection is outbound only , will i give Virtual Server IP or F5 Self-IP to security Team to do the NAT Mapping. 

From My Understanding i should give them self-Ip since Since F5 will change the source Ip to Self-Ip when going out.