Ezekiel 44:25-27

New Revised Standard Version, Anglicised Catholic Edition

²⁵ They shall not defile themselves by going near to a dead person; for father or mother, however, and for son or daughter, and for brother or unmarried sister they may defile themselves. ²⁶ After he has become clean, they shall count seven days for him. ²⁷ On the day that he goes into the holy place, into the inner court, to minister in the holy place, he shall offer his sin-offering, says the Lord God.