Tell me what this Iranian inscription says?

What first got my attention about this picture is that I think, aesthetically, it is very beautiful. It’s done by a street artist in Iran.

I would really like to know what it says. (or is it just the guy’s name?)


“One ring to rule them all…”
er…I mean… “Bump”

Hard to say. Its calligraphy and part of it is missing making reading a bit difficult. There is a “Muhammad” in there, so probably (but not necessarily) religious in nature.