Rashi on Deuteronomy 23:19/רש"י על דברים כ״ג:י״ט

1אתנן זונה [THOU SHALT NOT BRING] THE PROSTITUTION HIRE OF A WHORE [… INTO THE HOUSE OF THE LORD, THY GOD FOR ANY VOW] — This means, if he (the paramour) gave her a lamb as the hire of her prostitution it is unfitted for sacrifice (Sifrei Devarim 261:1; Temurah 29a).

2ומחיר כלב [THOU SHALT NOT BRING …] THE PRICE OF A DOG [INTO THE HOUSE OF THE LORD …], if one has exchanged a lamb for a dog (Sifrei Devarim 261:2; Temurah 30a).

3גם שניהם FOR EVEN BOTH THESE ARE [ABOMINATION UNTO THE LORD, THY GOD] — The words גם שניהם taken as גם שנוייהם are intended to include in the prohibition the things into which they (whatever is given as hire) are changed, as, e.g., if he gave the woman wheat and she made it into flour (Temurah 30b).