"A priest must not defile himself by going near a dead person; however, if the dead person was his father or mother, son or daughter, brother or unmarried sister, then he may defile himself."
NIV
And they shall go near to no dead person to defile themselves, except for father or for mother, for son or for daughter, for brother or for sister who has had no husband; for them they may defile themselves. [Lev. 21:1, 2.]AMP
And they shall come at no dead person to defile themselves: but for father, or for mother, or for son, or for daughter, for brother, or for sister that hath had no husband, they may defile themselves.
KJV