Leviticus 8:12

וימשח … ‎‏ ויצק‎ AND HE POURED [THE ANOINTING OIL UPON AARON'S HEAD] AND ANOINTED |HIM| — First he poured some oil upon his head and afterwards he put a drop between his eyebrows, and he drew the oil with his finger from this place to that (this drawing the oil from one place to the other was the anointing here spoken of) (Keritot 5b; Horayot 12a; cf. also Rashi on Exodus 29:7).

וַיִּצֹק֙ מִשֶּׁ֣מֶן הַמִּשְׁחָ֔ה עַ֖ל רֹ֣אשׁ אַהֲרֹ֑ן וַיִּמְשַׁ֥ח אֹת֖וֹ לְקַדְּשֽׁוֹ׃

And he poured of the anointing oil upon Aharon’s head, and anointed him, to sanctify him.