It was first cited in the imperial edict upon enthronement of Empress Gensho, and since then, it is exclusively found in the imperial edicts upon enthronement of the successive emperors or in the form of reference to an imperial edict upon abdication of a certain former emperor used in the imperial edict upon enthronement of the successor.
最初は元正天皇の即位詔で、他もすべて即位詔か、即位詔の中で引用される前天皇の譲位詔の中に現れる。