李愬
In fall 817, in a battle where Li Su attacked Wufang (吳房, in modern Zhumadian), Li Su launched the attack on a day considered to be "wangwang" (往亡, i.e., a particular inopportune day for military action) on the Chinese calendar, against his officers' reservations, he caught the Wufang defenders unaware and quickly captured the outer city, forcing them to withdraw within the inner city. Li Su then withdrew to try to draw them out. Their commander Sun Xianzhong () thereafter attacked Li Su's rear. When Li Su's own soldiers panicked, Li Su got off his horse and sat on a chair, stating, "Anyone who dares to retreat further will be beheaded." His soldiers thereafter fought back and killed Sun. When they then suggested that he attack Wufang's inner city and capture it, he responded, "That is not within my plan." He then withdrew back to his own camp.