Numbers 19:21

21 This is to be a permanent regulation for them. The person who sprinkles the water for purification is to wash his clothes. Whoever touches the water for purification will be unclean until evening.

Numbers 19:21 In-Context

19 The clean person will sprinkle the unclean person on the third and seventh days. On the seventh day he will purify him; then he will wash his clothes and himself in water; and he will be clean at evening.
20 The person who remains unclean and does not purify himself will be cut off from the community because he has defiled the sanctuary of ADONAI. The water for purification has not been sprinkled on him; he is unclean.
21 This is to be a permanent regulation for them. The person who sprinkles the water for purification is to wash his clothes. Whoever touches the water for purification will be unclean until evening.
22 Anything the unclean person touches will be unclean, and anyone who touches him will be unclean until evening."
Complete Jewish Bible Copyright 1998 by David H. Stern. Published by Jewish New Testament Publications, Inc. All rights reserved. Used by permission.