《汉书·传·司马迁传》
二十岁南游江淮，他登上会稽山，探访禹穴，到九疑山，考察舜的遣迹，泛舟沅、湘水间。
二十而南游江、淮，上会稽，探禹穴，窥九疑，浮沅、湘。
At the age of twenty, he traveled south to the Yangtze and Huai Rivers. He climbed Mount Kuaiji, visited the Yu Cave, went to Mount Jiuyi to investigate the remains of Shun, and sailed between the Yuan and Xiang Rivers.