Custom Rewrite Rule in Wordpress

I am trying to create a custom page in Wordpress with a special URL Rewrite and I am trying the following:

function custom_rewrite_rule() {
add_rewrite_rule('^services/service-in-([^/]*)/?','index.php?page_id=238&location=$matches[1]','top');
  }
  add_action('init', 'custom_rewrite_rule');

However, when I go to http://ift.tt/1QI4sOL I just get a 404 message.

I have also tried this manually in htaccess but just get a 404.

via Chebli Mohamed