In 960, Morosuke fell ill, and following the custom at the time, decided to join the priesthood; however, Emperor Murakami sent an imperial messenger to persuade him that he was still needed and should remain.
天徳(日本)4年（960年）師輔は病に伏し、当時の慣習に従い剃髪出家しようとするが、村上天皇は勅使を送り、師輔の必要たるを励まし慰留しようとした。