Ezekiel 44:27

27 and then go into the inner courtyard of the Temple and offer a sacrifice for his purification, so that he can serve in the Temple again. I, the Sovereign Lord, have spoken.

Ezekiel 44:27 In-Context

25 "A priest is not to become ritually unclean by touching a corpse, unless it is one of his parents, one of his children or a brother or an unmarried sister.
26 After he has become clean again, he must wait seven days
27 and then go into the inner courtyard of the Temple and offer a sacrifice for his purification, so that he can serve in the Temple again. I, the Sovereign Lord, have spoken.
28 "The priests have the priesthood as their share of what I have given Israel to be handed down from one generation to another. They are not to hold property in Israel; I am all they need.
29 The grain offerings, the sin offerings, and the repayment offerings will be the priests' food, and they are to receive everything in Israel that is set apart for me.
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.