The more I read the more I'm convinced that if a phrase is short, pithy, and doesn't involve at least one pun that only makes sense in prakrit; Siddhāttha Gotama didn't say it.
Seriously, that guys idea of an inspiratonal poster would re-state the same four points three different ways--each with subtly different emphasis and conjugation--and then wrap up with an off hand comment that only makes sense if you're familiar with 6th century bce brahmanic liturgical practices, and vedic sanskrit.
(my personal opinion is this has more to do with memorized oral transmission than the historical Buddha himself.
In either case if it fits on a t-shirt, your yoga teacher made it up.)