《资治通鉴·晋纪·晋纪九》
司马端按照朝廷旨意让苟担任太子太傅、都督中外诸军事、录尚书事。从仓垣迁徙到蒙城驻扎。
端承制以晞领太子太傅、都督中外诸军、录尚书事，自仓垣徙屯蒙城。
Sima Duan asked Gou to serve as the prince's grand master, governor of military and political affairs, and record the affairs of the Shangshu according to the imperial edict. He moved from Cangyuan to Mengcheng and stationed there.