《新五代史·世家·后蜀世家第四》
明德三年三月，荧惑星遮掩积尸星，孟昶认为积尸星指示蜀的分野，因此很害怕，想求福消灾，就这事征询司天少监胡辑的意见，胡租说： 按查十二星纪的位次，从井宿五度到柳宿八度，是鹑首星纪的位次，鹑首，指示秦地的分野，蜀虽然属于秦地，但不过是最南面的外围罢了。
明德三年三月，荧惑犯积尸，昶以谓积尸蜀分也，惧，欲禳之，以问司天少监胡韫，韫曰： 按十二次，起井五度至柳八度，为鹑首之次，鹑首，秦分也，蜀虽属秦，乃极南之表尔。
In the third month of the third year of Mingde, the planet Jupiter covered the constellation “Jishiping”. Meng Chang believed that Jishiping indicated the Shu land, so he was very scared. He wanted to eliminate the disaster by praying for luck. He asked Hu Ji, the assistant astronomer, for advice. Hu Ji said: According to the order of the twelve “Xingji” (periods), from the fifth degree of “Jingsu” to the eighth degree of “Liusu” is the period of “Chunshou Xingji”. Chunshou indicates the Qin land. Although Shu belongs to Qin, it is only the outermost edge in the south.