《资治通鉴·晋纪·晋纪三十一》
王国宝的哥哥侍中王恺、骠骑司马王愉一起恳请辞职。司马道子因为王恺、王愉与王国宝不是同母所生，彼此的关系又历来不和，就都不予追究。
国宝兄侍中恺、骠骑司马愉并请解职；道子以恺、愉与国宝异母，又素不协，皆释不问。
Wang Guobao’s older brother Wang Kai, Minister of Attendance, and Wang Yu, Biaoqi Commander, requested permission to resign together. Since Wang Kai and Wang Yu had different mothers than Wang Guobao and had always had a poor relationship with him, Sima Daozi did not pursue the matter with them.