《资治通鉴·梁纪·梁纪六》
胡太后再次摄政之后，郑俨向萧宝寅请求奉命出使回朝，胡太后留下了他，委任他为谏议大夫、中书舍人，并兼尚食典御，昼夜住在宫中；每次到了放假的日子，郑俨回家，胡太后经常派遣宦官跟随着他，郑俨见到妻子，也只能说一些家务事。
太后再摄政，俨请奉使还朝，太后留之，拜谏议大夫、中书舍人，领尝食典御，昼夜禁中；每休沐，太后常遣宦者随之，俨见其妻，唯得言家事而已。
After Empress Hu became regent again, Zheng Yan asked Xiao Baoyin to request an order to return to the imperial court to serve as an emissary. Empress Hu kept him and appointed him as a counsellor and a member of the Imperial Secretariat, while also serving as the Shangshi Dianyu, living in the palace day and night; every time it was time for a holiday, Zheng Yan would return home, and Empress Hu would often send eunuchs to follow him. When Zheng Yan saw his wife, he could only talk about household matters.