Parashas Metzora · Passuk 15:05
Chabad.org — English translation + Rashi
Torah Temima points to Toras Kohanim.
English: “And a man who touches” — a person who touches a bed conveys impurity to garments, but a bed that touches a bed does not convey impurity to garments.
Person vs. article as conveyor
Chazal distinguish: contact by a person with the zav’s midras makes his clothes impure; contact of one midras article with another does not.