《晋书·帝纪·第五章》
五月壬辰，任命镇东大将军、琅邪王司马睿为侍中、左丞相、大都督陕束诸军事，任命大司马、南阳王司马保为右丞相、大都督陕西诸军事。
五月壬辰，以镇东大将军、琅邪王睿为侍中、左丞相、大都督陕东诸军事，大司马、南阳王保为右丞相、大都督陕西诸军事。
On Renchen Day in May, General of the Zhen Dong and King of Langye, Sima Rui, was appointed to be the attendant of the palace, the commander of the Left, and the general commander of Shaanxi and other military forces. The Grand Marshal Sima Bao was appointed to be the commander of the Right, and the general commander of Shaanxi and other military forces.