《资治通鉴·晋纪·晋纪八》
石勒、刘灵率领三万人进犯魏郡、汲郡、顿丘等地，五十多个村垒的百姓望风投降，石勒对全部村垒头目都授给将军、都尉的印章和绶带，并从百姓中挑选了五万强壮者作为兵士，对老弱病残的百姓仍让他们在原地安居。
石勒、刘灵帅众三万寇魏郡、汲郡、顿丘，百姓望风降附者五十馀垒；皆假垒主将军、都尉印绶，简其强壮五万为军士，老弱安堵如故。
Shi Le and Liu Ling led 30,000 men to advance upon Weijun, Jijun, and Dunqiu, and the people of more than 50 fortified villages surrendered at the first sign of trouble. Shi Le gave all the village leaders the insignia and ribbons of generals and military commanders; from the people he selected 50,000 strong men as soldiers and allowed the old, weak, sick, and disabled people to continue living where they were.