《资治通鉴·后晋纪·后晋纪五》
石敬瑭从太原南下，留下李彦韬侍奉出帝，成为心腹，从此就受到宠信。
高祖自太原南下，留彦韬侍帝，为腹心，由是有宠。
When Shi Jingtang went south from Taiyuan, he let Li Yantao serve Emperor Chudi, and Li became a confidant; since then, he received favor.