Link to Jomsocal User Profile Page

// Include Jomsocial core
$jspath = JPATH_ROOT.DS.'components'.DS.'com_community';
include_once($jspath.DS.'libraries'.DS.'core.php');
// Get CUser object
$link = CRoute::_('index.php?option=com_community&view=profile&userid='.$userid);
echo '<a href="/.$link.">User profile</a>';