The party of Ganjin (Jianzhen), who wanted a missionary to travel to Japan, wished to board, but Tang prohibited Ganjin from leaving the country, so Kiyokawa rejected his boarding.
日本への渡航を望む鑑真一行が乗船を希望したが、唐が鑑真の出国を禁じたため清河は乗船を拒否した。