View source for Template:Require substitution

<includeonly>{{
  {{{|safesubst:}}}#if:{{{nosubst|{{{subst|}}}}}}{{ {{{|safesubst:}}}issubst}}
  | {{{1|}}}
  | {{ {{{|safesubst:}}}error
       | This template must be [[Wikipedia:Template substitution|substituted]]{{
           #if:{{{template|}}}
           |. Replace <nowiki>{{</nowiki>{{{template}}} ...<nowiki>}} with {{</nowiki>subst:{{{template}}} ...<nowiki>}}</nowiki>
         }}.}}
}}</includeonly><noinclude>{{documentation}}</noinclude>