Song Caobin attacked Jinling (now Nanjing, Jiangsu), and when he was about to conquer it, he suddenly said that he was ill. His generals were very surprised. They all came to visit his illness and hoped to recover soon. Cao Bin said:' My illness can't be cured by a doctor's medicine. You all make a joint statement and swear not to kill one person when the city is captured.' The generals agreed, burning incense and taking the oath immediately, first. The city is stable and the people are as always. Another general, Cao Hanke, was so angry when he attacked Jiangzhou (now Jiujiang City, Jiangxi Province) that he could not take it for a long time. After the conquest, he slaughtered the people in the city.