Numbers 19:6

Likewise, cedar wood, and hyssop, and twice-dyed scarlet he shall cast into the flame, by which the cow is consumed

Other versions

King James Version

And the priest shall take cedar wood, and hyssop, and scarlet, and cast it into the midst of the burning of the heifer.

English Standard Version

And the priest shall take cedarwood and hyssop and scarlet yarn, and throw them into the fire burning the heifer.

New International Version

The priest is to take some cedar wood, hyssop and scarlet wool and throw them onto the burning heifer.