Numbers 3:47-49

Young's Literal Translation

⁴⁷ thou hast even taken five shekels a-piece by the poll -- by the shekel of the sanctuary thou takest; twenty gerahs the shekel [is];

⁴⁸ and thou hast given the money to Aaron, and to his sons, whereby those over and above are ransomed.'

⁴⁹ And Moses taketh the ransom money from those over and above those ransomed by the Levites;