src/Neutrino/Auth/Manager.php
protected function retrieveUserByToken($identifier, $token)
    {
        $user = $this->retrieveUserByIdentifier($identifier);

        if (!empty($user) && $user->getRememberToken() === $token) {
            return $user;
        }

        return null;
    }
protected function retrieveUserByToken($identifier, $token)
    {
        $user = $this->retrieveUserByIdentifier($identifier);

        if (!empty($user) && $user->getRememberToken() === $token) {
            return $user;
        }

        return null;
    }
Retrieve a user by his identifier & remember token.

@param string $identifier
@param string $token

@return AuthenticableInterface|\Phalcon\Mvc\Model