In June 702, he went to Tang Dynasty (to be exact, this is the Bushu Dynasty established by Busokuten [Empress Sokuten] as Tang was not established at that time).
同年6月大宝律令を携えて唐（正確にはこの時代、唐は存在しておらず、武則天（則天武后）が新たに建てた武周である）へ渡った。