French phrase
Cela n'a rien à voir avec ~.
Meaning
That has nothing to do with ___.
When to use it
It firmly denies any connection. It separates a topic or cause from the matter at hand in a calm, factual tone.
Example dialogue
Tu dis que c'est à cause de son travail ?
Are you saying it's because of his job?
Non, Cela n'a rien à voir avec son travail.
No, that has nothing to do with his job.