"He who is the high priest among his brethren, on whose head the anointing oil was poured and who is consecrated to wear the garments, shall not uncover his head nor tear his clothes;
Leviticus 21:10
Surrounding context
21:9 The daughter of any priest, if she profanes herself by playing the harlot, she profanes her father. She shall be burned with fire.
21:10 "He who is the high priest among his brethren, on whose head the anointing oil was poured and who is consecrated to wear the garments, shall not uncover his head nor tear his clothes;
21:11 nor shall he go near any dead body, nor defile himself for his father or his mother;