Devarim 5:13-14

Sheshet yamim thou shalt labor, and do all thy work: But the Yom HaShevi'i is the Shabbos of HASHEM Eloheicha: in it thou shalt not do any work, thou, nor thy ben, nor thy bat, nor thy eved, nor thy maidservant, nor thine ox, nor thine donkey, nor any of thy cattle, nor thy ger that is within thy she'arim; that thy eved and thy amah may rest as well as thou.