Leviticus 15:9
And any leather seat on a horse on which the unclean man has been seated will be unclean.
Genesis 31:34
Now Rachel had taken the images, and had put them in the camels' basket, and was seated on them. And Laban, searching through all the tent, did not come across them.
Treasury of Scripture Knowledge
Summary
And what saddle soever he rideth upon that hath the issue shall be unclean.
General references
Bible References
General references
Leviticus 15:20
And everything on which she has been resting, while she is kept separate, will be unclean, and everything on which she has been seated will be unclean.