It was then he learned that the last writings of Sen Rikyu were being kept by the Fuyuki family, who were wealthy merchants in Fukagawa (Koto Ward), and he negotiated for their return to Omotesenke.
この折りに深川_(江東区)の豪商冬木家に千利休の遺偈が秘蔵されていることがわかり、不白の交渉により表千家に返納された。