Where it appears

• Lev 10:6Moses said to Aaron, and to Eleazar and to Ithamar, his sons, “Don’t let the hair of your heads go loose, and don’t tear your clothes; so that you don’t die, and so that he not be angry with all the congregation; but let your brothers, the whole house of Israel, bewail the burning which Yahweh has kindled.
• Lev 13:45“The leper in whom the plague is shall wear torn clothes, and the hair of his head shall hang loose. He shall cover his upper lip, and shall cry, ‘Unclean! Unclean!’
• Lev 21:10“‘He who is the high priest among his brothers, upon whose head the anointing oil is poured, and that is consecrated to put on the garments, shall not let the hair of his head hang loose, or tear his clothes.