Every thing that openeth the matrix in all flesh, which they bring unto the LORD, [whether it be] of men or beasts, shall be thine: nevertheless the firstborn of man shalt thou surely redeem, and the firstling of unclean beasts shalt thou redeem.
Jewish Publication Society of America Version (JPS1917) - Numbers 18:15 >Every thing that openeth the womb, of all flesh which they offer unto the LORD, both of man and beast, shall be thine; howbeit the first-born of man shalt thou surely redeem, and the firstling of unclean beasts shalt thou redeem.