Rashi on Leviticus 22:14/רש"י על ויקרא כ״ב:י״ד

1כי יאכל קדש AND IF [A MAN] EAT OF HOLY THINGS — the heave-offering.

2ונתן לכהן את הקדש THEN SHALL HE GIVE UNTO THE PRIEST THE קדש — i. e. a thing capable of becoming קדש, thus implying that he does not pay him money but fruits of a non-sacred character (חולין), which then become תרומה (cf. Sifra, Emor, Chapter 6 5; Pesachim 32b).