《旧唐书·列传·卷一百三十七》
武德初，以骠骑将军名号镇守泾州，薛仁杲率领军队围攻泾州，刘感环城固守御敌，城中粮食都吃光了，便杀所骑的马分给将士们，刘感却一点也不吃，只是取些马骨煮水，掺和些木屑一并吃下去。
武德初，以骠骑将军镇泾州。薛仁杲率众围之。感婴城拒守，城中粮尽，遂杀所乘马以分将士，感一无所啖，唯煮马骨取汁，和木屑食之。
In the early days of Wude, he stationed troops in Jingzhou with the title of General of the Horse Rider, and Xue Renguo led his troops to besiege Jingzhou. Liu Gan defended the city and defended the enemy. The food in the city was exhausted, so he killed the horses he rode and distributed them to the soldiers. Liu Gan didn't eat anything, but just boiled some horse bones in water and mixed them with sawdust to eat.