《太平广记·卷一百六十三·谶应》
后梁太祖开平二年，朝廷命令李思安将军攻打潞州。军队宿营在壶口关，伐木修造栅栏。
梁开平二年，使其将李思安攻潞州，营于壶口关，伐木为栅。
In the second year of Later Liang Taizu's reign of Kaiping, the imperial court ordered General Li Si'an to attack Luzhou. The army was stationed in Hukou Pass, where they felled trees to build a fence.