Ujiyuki, in his late years, called himself 'Gensan,' his posthumous Buddhist name, and it is thought that he passed away after his final donation of 'Zaichotonariato, Kume County, Hoki Province' to Joko-ji Temple, Kume County on October 23, 1424.
晩年の氏之は法名の「源賛」を名乗るようになり、応永31年（1424年）10月23日(旧暦)に久米郡定光寺に「伯耆国久米郡在庁富成跡」を寄進したのを最後に没したものと見られる。