For those seeking an authentic encounter with the Nakatomi Purification Prayer, the most stable point of reference lies in the classical liturgical tradition. The text is preserved in the Engishiki, a compendium of court regulations and ritual protocols, where the Ōharae no Kotoba appears in the eighth volume as the standardized form of the Great Purification. Scholarly editions of the Engishiki, especially those produced in modern critical series, provide carefully edited versions of the prayer, often with notes that illuminate variant readings and ritual context. Alongside this, dedicated collections of norito, such as those that gather ancient ritual prayers into a single corpus, transmit the Nakatomi text in both kanbun and kana forms. These sources together form the backbone of what may be called the “received” version of the prayer in the Shinto tradition.

Beyond printed editions, the quest for authenticity naturally leads toward manuscript archives and institutional collections. The Imperial Household Agency preserves classical ritual texts and early Engishiki materials, safeguarding the courtly lineage of the prayer. National research institutes and major universities maintain extensive holdings of norito and Engishiki manuscripts, some of which have been reproduced in facsimile or made available through comprehensive classical text databases. Shrine archives, particularly those of major sanctuaries such as Ise, also hold ritual documents that reflect how the prayer has been transmitted and performed within living communities of practice. In such places, the text is not merely an object of study but part of an ongoing liturgical current.

For many seekers, however, engagement with the prayer will begin not with fragile manuscripts but with carefully prepared scholarly and liturgical publications. Critical norito collections and classical literature series offer reliable transcriptions that rest on comparison of multiple manuscript lines, allowing the reader to stand, as it were, at a confluence of traditions rather than at a single, isolated source. Modern ritual manuals and standardized liturgical texts used by priests draw upon this same classical foundation, embodying the Engishiki version as the normative form for contemporary practice. To read the Nakatomi Purification Prayer in these contexts is to participate in a long chain of transmission, where philological care and devotional continuity support one another.

Ultimately, the search for “authentic” manuscripts reveals that the prayer does not reside in a single, definitive document but in a family of closely related witnesses. Classical compilations such as the Engishiki and major norito anthologies provide the clearest window onto the courtly archetype, while archival holdings and shrine collections preserve the texture of its historical unfolding. Approaching these sources with both scholarly rigor and spiritual receptivity allows the text to be encountered not as a relic frozen in time, but as a living word that has been carefully carried through the centuries.