원제
In spring 554, while on a diplomatic mission to Liang (now with Xiao Yi as its undisputed emperor—as Emperor Yuan), the Western Wei official Yuwen Renshu (宇文仁恕, probably Yuwen Tai's relative but relationship is unclear) was slighted by Emperor Yuan, who treated Northern Qi's ambassador with far greater respect. Emperor Yuan then further aggravated the situation by sending an impolite letter to Yuwen Tai demanding that the borders be redrawn in accordance with old borders. Yuwen made the comment, "Xiao Yi is the type of person that, as said in proverbs, 'One who has been abandoned by heaven cannot be revived by anyone else.'" Yuwen Tai therefore began to prepare attacking Emperor Yuan at his headquarters of Jiangling (江陵, in modern Jingzhou, Hubei), as Emperor Yuan had made Jiangling his capital and declined to move back to the old capital Jiankang. The Western Wei general Ma Bofu (馬伯符), formerly a Liang general, secretly revealed the attack plans to Emperor Yuan, but Emperor Yuan did not believe Ma and took minimal precautions.