Midrash sa 2 Mga Hari 12:17: Sifra

6) This tells me only of the surplus of guilt-offerings. Whence do I derive the same for the surplus of sin-offerings, the tenth of the ephah of the bird-couples of zavim and zavoth (those with genital discharges), and the bird-couples of women who had given birth, and the bird-couples of the surplus of the offerings of a Nazirite and of a leper and of one who dedicates his possessions (to the sanctuary) and there are among them things appropriate for the altar — wines, oils, fine flours and birds — Whence is it derived that they are to be sold with those things in mind and burnt-offerings purchased with their monies? From: "he has been guilty": This was expounded by Yehoyada the high-priest: "It is a guilt-offering; he has been guilty to the L–rd" — This is the principle: Everything that comes because of sin or guilt — burnt-offerings should be purchased (with their monies), the flesh to go to the L–rd, and the hides to the Cohanim. Two verses are thus satisfied — "a gift-offering to the L–rd" and "a gift-offering to the Cohein." And it is written (II Kings 12:17): "The (surplus) monies of a guilt-offering and the (surplus) monies of sin-offerings shall not be brought to the house of the L–rd (for Temple maintenance); to the Cohanim shall they be."