Shakyamuni mantra

Om muni muni mahamuni shakyamuniye svaha

This form has the name of Shakyamuni in the dative form, so that it reads “Om wise one, wise one, great wise one, to the wise one of the Shakyans hail!”

This is actually the more common form of the mantra in Sanskrit, although in Tibetan the mantra is in the “Tibeticized” version of the shorter form given above: Om muni muni maha muni shakyamuni soha - “soha” being the Tibetan rendering of “svaha.”

http://www.wildmind.org/mantras/figures/shakyamuni