《水经注·卷十七》
渭水往东南流过首阳县南，在右边汇合了封溪水，稍南，汇合了广相溪水；稍东，汇合了共谷水；左边又有了天马水；稍南，有伯阳谷水。诸水参差地从两旁注入，乱流奔向东南。
渭水东南流径首阳县南，右得封溪水，次南得广相溪水，次东得共谷水，左则天马溪水，次南则伯阳谷水，并参差翼注，乱流东南出矣。
The Wei River flows southeast, past the south of Shouyang County and on the right merges with Fengxi River, slightly south, it merges with Guangxiangxi River; slightly further east, it merges with Gonggu River, on the left, it is joined by Tianma River; slightly south, is Boyanggu River. Various rivers enter from both sides, forming a torrent flowing southeast.