《旧唐书·列传·卷一百二十二》
贼军听说李湘率军来泗州救援，庞勋派人送信给令狐綯，言辞态度恭顺，信称 朝廷屡有诏书宽赦，抗拒者仅三、两个人而已，我将尽快设法除掉他们，立即归顺请求处置，希望相公替我担保 。
贼闻湘来援，遣人致书于綯，辞情逊顺，言： 朝廷累有诏赦宥，但抗拒者三两人耳，旦夕图去之，即束身请命，愿相公保任之。 
When the rebels heard that Li Xiang led an army to rescue Sizhou, Pang Xun sent a message to Linghu Qu, his words were respectful, and the letter said: "The court has repeatedly issued edicts of amnesty, only three or two people resisted, I will find a way to remove them as soon as possible, and I will immediately surrender and ask for disposal, I hope the Duke will guarantee for me."