《黄帝内经·素问·六元正纪大论》
客运五步：初之运少徵，二之运太宫，三之运少商，四之运太羽，终之运少角。
少商、太羽、太角、少徵、太宫。
Five steps of guest progress: the first progress is Shao Zheng, the second progress is Tai Gong, the third progress is Shao Shang, the fourth progress is Tai Yu, and the last progress is Shao Jiao.