Leviticus 15:4-6

New American Standard Bible

⁴ Every bed on which the man with the discharge lies becomes unclean, and everything on which he sits becomes unclean. ⁵ Anyone, moreover, who touches his bed shall wash his clothes and bathe in water and be unclean until evening; ⁶ 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.