command to verify received vpnv4 routes from specific route-target?

How to verify routes imported to bgp vpnv4 table? Ex. rt import 1111:1111 <--- how to know routes received from this RT w/out inspecting each prefixes extend-comminity.

tried show ip bgp vpnv4 vrf name extended-community RT:1111:1111

But there no display or no vrf display error

Thank you