Board Thread:Questions and Answers/@comment-31248803-20170221231416/@comment-1863308-20170222004242

Not sure if I'm helping by saying this but not even Viz Media attempted to translate the sutra into English lol They left the Kanji of the Sutra in the speech bubbles, provided Romaji for it in parenthesis on one of the bubbles, and starred the first time the sutra appeared in a bubble and called it the "Secret Sutra of the Great Immovable Acala", which would go with that translation above.

The exact Romaji that was used was i n Konekomaru's first (two) sutra speech bubble(s):

(Kan) Kei Shu Sei Mu Dou Son Hi Mitsu Da Ra Ni Kyou

The exact Kanji: （カーン）稽首正無動尊秘密駝羅尼経