sn.25.4 Saṁyutta Nikāya (Linked Discourses)
Contact
At Sāvatthī.“Mendicants, eye contact is impermanent, decaying, and perishing.
Ear contact,
nose contact,
tongue contact,
body contact,
and mind contact are impermanent, decaying, and perishing.
Someone who has faith and confidence in these principles is called a follower by faith. …”