《汉书·传·东方朔传》
汉武帝认为路远劳苦，又被老百姓厌恨，于是派太中大夫吾丘寿王和两个懂算术的待诏，将阿城以南，盐厘以束，宜春宫以西地区，总计其中农田顷亩数，及农田折合价值的多少，编为簿册，打算在这裹置建上林苑，让它和终南山相连。
于是上以为道远劳苦，又为百姓所患，乃使太中大夫吾丘寿王与待诏能用算者二人，举籍阿城以南，盩厔以东，宜春以西，提封顷亩，乃其贾直，欲除以为上林苑，属之南山。
Emperor Wu thought that the road was far and arduous, and that the people hated him, so he sent the Grand Master of the Palace, Wuqiu Shouwang, and two arithmetic masters to the area south of Acheng, east of Yanci, and west of Yichung Palace, to compile a book of the total number of acres of farmland and the value of the farmland. He planned to build Shanglin Gardens there and connect it to Mount Zhongnan.