Parashas Metzora · Passuk 14:29
Chabad.org — English translation + Rashi
Torah Temima points to Zevachim 7b (verified on the daf).
E-Daf.com — Tsurras Hadaf (size=3)
HebrewBooks / Shas PDF of the daf
English: “He shall place to atone” — this teaches that if he placed [the oil] he has atoned, and if he did not place it he has not atoned.
Essential nature of the placement
Chazal teach that the placement of the remaining oil on the head is indispensable for the kapparah of the poor metzora’s offering.