Imamat 8:12

8:12 He then poured some of the anointing oil on the head of Aaron and anointed him to consecrate him.

Imamat 21:5

21:5 Priests ¹  must not have a bald spot shaved on their head, they must not shave the corner of their beard, and they must not cut slashes in their body. ² 

[21:5]  ¹ tn Heb “they”; the referent (priests, see the beginning of v. 1) has been specified in the translation for clarity.

[21:5]  ² tn Heb “and in their body they shall not [cut] slash[es]” (cf. Lev 19:28). The context connects these sorts of mutilations with mourning rites (cf. Lev 19:27-28 above).