錬 — tempering, refine, drill, train, polish

しかし、『百錬抄』および『玉葉』がその要旨を今日に伝えている。

However, the essentials of the decree have come down to this time by "Hyakuren sho" (History book from the Kamakura period) and "Gyokuyo" (Diary of Kanezane KUJO).