《隋书·列传·卷五十》
化及军粮用尽，渡过永济渠，与李密在童山决战，于是进入汲郡寻求军粮，又派人拷打东郡官吏和百姓，向他们索取粮食。
化及粮尽，渡永济渠，与密决战于童山，遂入汲郡求军粮，又遣使拷掠东郡吏民以责米粟。
Hua Ji's army ran out of food supplies. He crossed the Yongji Canal and fought a decisive battle against Li Mi at Tongshan. Subsequently, he retreated to Ji County to replenish his supplies. He also had the officials and people of Dong County tortured for food.