Configure "ip accounting output-packets" in the following interface.
Outgoing interface of the local router
Outgoing/incoming interface of the first hop router (if you have access to it)
To check, perform ping or traceroute, then execute "show ip accounting" in both routers.
In local router, you should see source as your local ip and destination as your target ip. This means the packet has been sent out of the local router outgoing interface.
In the first hop router, you should see source as your local ip and destination as your target ip. This means the first hop router received your packet from its incoming interface and sent out to its outgoing interface. If there is a return packet, you should also see source as your target ip (or first hop router ip if you do traceroute) and destination as your local ip.