《汉书·纪·高帝纪下》
刘向说成国时刘氏从秦复居于魏，秦攻魏，魏都迁徙于大梁，都于丰地，所以周市劝说雍齿说： 丰，是魏的迁徙之处。 
刘向云战国时刘氏自秦获于魏。秦灭魏，迁大梁，都于丰，故周市说雍齿曰： 丰，故梁徙也。 
Liu Xiang said that during the Cheng Guo period, the Liu clan moved back to Wei from Qin. When Qin attacked Wei, Wei's capital moved to Daliang and was located in the Feng area, which is why Zhou Shi advised Yong Chi, saying: "Feng is the place where Wei moved to."