You seem to be arguing with a view which I never expressed. I never claimed there is a single authority. I never claimed there are no contradicting interpretations. I was just expressing reasonable doubt about your claims which you can't confirm. Yes, there are some differences in interpretation, but there are also things which are never disputed. Let's get off this alcohol topic, I'll give you another example: there are no mosques with crosses on. Why? Because Muhammad said Jesus wasn't crucified, Islam denies this key concept of Christianity. And you won't find any Islamic source telling a different version.