Numbers 19:7 describes the priest washing after burning the heifer; verse 8 extends the same requirement to the burner.

Numbers 19:10 requires the gatherer of ashes to wash clothes, exactly as the burner does in verse 8.

Numbers 8:7 uses washing clothes and water of purification to cleanse Levites, echoing the cleansing ritual here.

Leviticus 11:25 requires washing clothes after carrying unclean carcasses, with uncleanness until evening—same rule as for the one burning the heifer.

Leviticus 11:40 repeats the washing and evening uncleanness for anyone eating or carrying a carcass—mirroring the purification here.

In Leviticus 16:26, the one releasing the scapegoat also washes clothes and bathes, mirroring the purification after handling the red heifer sin offering.

Leviticus 17:15 prescribes the same washing and bathing for uncleanness from eating carrion—similar procedure but unrelated context.