title: 1 message for multiple required_without rules
body: <p>I have 2 (contact telephone and contact mobile) fields in a form which either A OR B need to be filled.</p>
  
  <p>I'm validating the form using laravel request validation and the <code>required_without</code> rule, which looks like this.</p>
  
  <pre><code>'contact_telephone' =&gt; 'required_without:contact_mobile',
  'contact_mobile' =&gt; 'required_without:contact_telephone',
  </code></pre>
  
  <p>So with this code it specifies that one of the 2 fields must be filled.</p>
  
  <p>The error is that if I try to submit the form without filling either one in, the error message shows twice.</p>
  
  <p>How would I show the message just once? Or is there a better rule to achieve this instead of <code>required_without</code> that i'm missing?</p>