JBoss.orgCommunity Documentation
The navigation rules could look as following:
...
<navigation-rule>
<from-view-id>/pages/include/first.xhtml</from-view-id>
<navigation-case>
<from-outcome>next</from-outcome>
<to-view-id>/pages/include/second.xhtml</to-view-id>
</navigation-case>
</navigation-rule>
...
Visit the Include page for examples of component usage and their sources.