Bamidbar 31:28-30

Orthodox Jewish Bible

²⁸ And levy a mekhes (tribute) unto Hashem of the anshei hamilchamah which went out to battle: one nefesh from five hundred, both of adam, and of bakar, and of chamorim, and of tzon;

²⁹ Take it of their half, and give it unto Eleazar HaKohen, for a terumat Hashem.

³⁰ And of the Bnei Yisroel’s half, thou shalt take one portion of fifty, of adam, of bakar, of chamorim, and of tzon, of all behemah, and give them unto the Levi’im, who are shomrei mishmeret Mishkan Hashem (who are guardians of the Mishkan Hashem).