Leviticus 15:6

Whoever sits on anything that the man with a discharge sat on must wash his clothes and bathe with water, and he will be unclean till evening.

(New International Version)

and whoever sits on the thing on which the man with the discharge has been sitting, shall wash his clothes and bathe in water and be unclean until evening.

(New American Standard Bible)

And he that sitteth on any thing whereon he sat that hath the issue shall wash his clothes, and bathe himself in water, and be unclean until the even.

(King James Version)