Leviticus 15:6

3 If the flow goes on or if the part is stopped up, to keep back the flow, he is still unclean.

4 Every bed on which he has been resting will be unclean, and everything on which he has been seated will be unclean.

5 And anyone touching his bed is to have his clothing washed and his body bathed in water and be unclean till evening.

6 And he who has been seated on anything on which the unclean man has been seated is to have his clothing washed and his body bathed in water and be unclean till evening.

7 And anyone touching the flesh of the unclean man is to have his clothing washed and his body bathed in water and be unclean till evening.

8 And if liquid from the mouth of the unclean man comes on to him who is clean, then he is to have his clothing washed and his body bathed in water and be unclean till evening.

9 And any leather seat on a horse on which the unclean man has been seated will be unclean.