《水经注·卷十五》
古代黄帝时，连续三天大雾，黄帝在洛水上游览，看到一条大鱼，于是杀了五牲来祭祀，天就连下七天七夜大雨，大鱼能游动了才得到图书，这就是今天的《河图•视萌篇》。
昔黄帝之时，天大雾三日，帝游洛水之上，见大鱼，杀五牲以蘸之，天乃甚雨，七日七夜鱼流，始得图书，今《河图视萌篇》是也。
In the time of the ancient Emperor Huang, there was a thick fog for three days, Emperor Huang visited the headwaters of Luo River and saw a big fish, so he sacrificed five livestock to worship, then there was torrential rain for seven days and seven nights, and the big fish swam away after receiving books, which is today's "Hetu•Simeng Chapter".