Kokin Wakashu Kanajo (Preface of Kokin Wakashu written in kana) of the "Kokin Wakashu" (A Collection of Ancient and Modern Japanese Poetry) written by KI no Tsurayuki was an early work written in Hiragana while keeping the usage of a text in Chinese.
紀貫之が書いた『古今和歌集』の「古今和歌集仮名序」は、漢文の用法を遺しながらも平仮名で書かれた和文として初期のものである。