The decrees having been issued for awarding ranks and for appointing posts to Ieyasu TOKUGAWA were lost (recorded in the article on May 8 (in the old calendar), 1645, of Tokugawa Jikki), and those that are now stored in Tosho-gu Shrine are the documents that were obtained through requesting the Imperial court to re-issue them in 1645, and there is a possibility that the name of Toyotomi was changed to Minamoto when re-issuing them.
現在、日光東照宮所蔵の徳川家康の任官叙位の宣旨は、徳川家康の任官叙位の宣旨が遺失したため（徳川実紀正保2年5月8日条）、正保2年（1645年）、征夷大将軍・徳川家光の要請により、朝廷に対して再発行の手続きによる文書として伝わっており、再発行の段階で豊臣から源に変更した可能性がある。