《三国志·魏书·董二袁刘传》
后来太祖又率军征讨荆州刘表，大军行进到西平，袁谭和袁尚就开始兄弟之间内斗，袁谭失利，逃往平原县。
太祖南征荆州，军至西平，谭、尚遂举兵相攻，谭败奔平原。
Afterwards, the Founding Emperor led an army to chastise Liu Biao in Jingzhou. When the large army marched to Xiping, Yuan Tan and Yuan Shang began fighting each other. Yuan Tan was defeated and fled to Pingyuan County.