This is what you must do to cleanse them: Sprinkle them with the water of purification. Have them shave their whole bodies and wash their clothes, and so purify themselves.
Jewish Publication Society of America Version (JPS1917) - Numbers 8:7 >And thus shalt thou do unto them, to cleanse them: sprinkle the water of purification upon them, and let them cause a razor to pass over all their flesh, and let them wash their clothes, and cleanse themselves.