Leviticus 21:9-11 Amplified Bible (AMP)

9. The daughter of any priest who profanes herself by playing the harlot profanes her father; she shall be burned with fire [after being stoned]. [Josh. 7:15, 25.]

10. But he who is the high priest among his brethren, upon whose head the anointing oil was poured and who is consecrated to put on the [sacred] garments, shall not let the hair of his head hang loose or rend his clothes [in mourning],

11. Neither shall he go in where any dead body lies nor defile himself [by doing so, even] for his father or for his mother;

Leviticus 21