《水经注·卷三十三》
望帝就是杜宇，他是从天上落下来的。有个叫朱利的姑娘，从江水的源头出来，做了杜宇的妻子。于是杜宇就在蜀称王，号称望帝。
女子朱利，自江源出，为宇妻，遂王于蜀，号曰望帝；望帝立以为相。
Wangdi is Du Yu, who fell from the sky. There is a girl named Zhuli who came out of the source of the river and became Du Yu's wife. So Du Yu became the king of Shu, known as the Emperor Wang.