《资治通鉴·后唐纪·后唐纪四》
李严的母亲很贤明，她对李严说： 你先前出谋划策消灭蜀国，今日再去那里，一定会以死来报答蜀国人民的。 
李严母贤明，谓严曰： 汝前启灭蜀之谋，今日再往，必以死报蜀人矣。 
Li Yan's mother was very wise and said to Li Yan: "You used to make suggestions to destroy the Shu kingdom. If you go there today, you will surely repay the people of Shu with your death.