Rashi on Leviticus 14:10/רש"י על ויקרא י״ד:י׳

1וכבשה אחת AND ONE EWE-LAMB for a sin-offering.

2ושלשה עשרנים AND THREE TENTH DEALS [OF FLOUR] — as the drink-offerings of these three he-lambs (Menachot 91a) — because the sin-offering and the guilt-offering of the leper require drink-offerings (although they are not required with other sin- and guilt-offerings).

3ולג אחד שמן AND ONE LOG OF OIL — to sprinkle on his behalf before the Lord seven times (cf. v. 17), and to put of it upon the tip of his ear and for putting it upon his thumbs (v. 25).