Numbers 18:15-17

15EveryH3605 thingH3605 that openeth the wombH7358, of allH3605 fleshH1320 whichH834 they offerH7126 unto the LORDH3068, bothH3605 of manH120 and beastH929, shall be thine: neverthelessH389 the firstbornH1060 of manH120 shalt thou surelyH389 redeemH6299, and the firstlingH6363 of uncleanH2931 beastsH929 shalt thou redeemH6299.

16And thoseH1121 that are to be redeemedH6299 of them from a monthH2320 oldH1121 shalt thou redeemH6299, according to thine estimation, for the moneyH3701 of fiveH2568 shekelsH8255, after the shekelH8255 of the sanctuaryH6944 (the sameH1931 is twentyH6242 gerahsH1626).

17But the firstling of an oxH7794, or the firstling of a sheepH3775, or the firstling of a goatH5795, thou shalt notH3808 redeemH6299; they are holyH6944: thou shalt sprinkleH2236 their bloodH1818 uponH5921 the altarH4196, and shalt burnH6999 their fatH2459 for an offering made by fireH801, for a sweet savour unto the LORDH3068.