According to "Azuma Kagami," the direct reason as to why Naozane would become a priest was because of Naozane's angry reaction toward the speech and conduct of Kagetoki KAJIWARA at the time of Naozane losing a lawsuit concerning a matter of territory.
『吾妻鏡』によると出家の直接の理由は所領を巡る訴訟に敗れた際、梶原景時の言動に怒ったためである。