Mark 7:2-4

2 and saw that some of his talmidim ate with ritually unclean hands, that is, without doing n'tilat-yadayim.
3 (For the P'rushim, and indeed all the Judeans, holding fast to the Tradition of the Elders, do not eat unless they have given their hands a ceremonial washing.
4 Also, when they come from the marketplace they do not eat unless they have rinsed their hands up to the wrist; and they adhere to many other traditions, such as washing cups, pots and bronze vessels.)
Complete Jewish Bible Copyright 1998 by David H. Stern. Published by Jewish New Testament Publications, Inc. All rights reserved. Used by permission.