Firstly, the description in Taishokukanden (the story of Kamatari) in "Toshi Kaden" (Biographies of the Fujiwara clan): 'By the order of the Emperor Tenchi, FUJIWARA no Kamatari compiled a Ritsuryo code in 668'; and secondly, the description in the introduction of "Konin Kyakushiki" (compilation of rules, regulations, and precedents): 'A 22-volume series code was enacted in 668. It is "Omi-chotei-no-ryo" (The Administrative Code of the Omi Court)'.
「天智天皇の命令により藤原鎌足が天智元年（668年）に律令を編纂した」（『藤氏家伝』大織冠伝）及び「天智元年に令22巻を制定した。これが『近江朝廷之令』である」（『弘仁格式』序）。