《隋书·列传·卷八》
不久炀帝在雁门被围，等到敌军被击退，炀帝发怒道： 子崇胆小怕事，没有根据就胡乱上表，惊扰我军心，不能做大臣。 
寻有雁门之围。及贼退，帝怒之曰： 子崇怯软，妄有陈请，惊动我众心，不可居爪牙之寄。 
Soon, Emperor Yang was besieged in Yanmen. After the enemy was repelled, Emperor Yang said angrily: "Zǐ Chóng is timid and afraid. He made groundless accusations and disturbed our army. He is not qualified to be a minister."