There is no such thing inbound/outbound in this command...it is include or exclude...
Look at the following example :-
The following example includes for authentication TCP traffic on the outside interface, with a local IP address of 192.168.0.0 and a netmask of 255.255.0.0, with a remote/foreign IP address of all hosts, and using a server named "tacacs+".
hostname(config)# aaa authentication include tcp outside 192.168.0.0 255.255.0.0 0.0.0.0
0.0.0.0 tacacs+
This command line excludes Telnet traffic on the outside interface with a local address of 192.168.38.0, with a remote/foreign IP address of all hosts
hostname(config)# aaa authentication exclude telnet outside 192.168.38.0 255.255.255.0
0.0.0.0 0.0.0.0 tacacs+