《魏书·帝纪·卷七》
建永固石室在山上，并在石室的庭院中立碑，刻太皇太后遗嘱在金册上，又兴建鉴玄殿。
建永固石室于山上，立碑于石室之庭；又铭太皇太后终制于金册；又起鉴玄殿。
Built a hidden room, made of stone, on a mountain and engraved the will of the grand empress dowager in a gold book in its courtyard. Also built a grand hall.