《南齐书·列传·卷四十六》
永明八年八月朔日，蔡约脱掉武冠，解下佩剑，在省台睡觉，到五更时还没有起来，被主管官员所奏劾，判处用钱赎过。
永明八年八月合朔，约脱武冠，解剑，于省眠，至下鼓不起，为有司所奏，赎论。
On the first day of the eighth lunar month of the eighth year of Yongming, Cai Yue took off his military cap and unbuckled his sword. He fell asleep in the office and was still not awake when the fifth watch began, so the supervisors accused him of dereliction of duty and had him fined.