《隋书·帝纪·卷三》
这才使天子的车驾以及春、夏、季夏、秋、冬五个时节皇帝侍从的车辆完备。
始备辇路及五时副车。
This made the emperor's carriage complete, as well as the carriages of the emperor's attendants for the five seasons of spring, summer, early summer, autumn, and winter.