Midrasz do Kapłańska 14:8

4) When Munbaz reasoned before R. Akiva: If one whom I freed (immediately, [i.e., an unconfirmed leper, who returned from his week of quarantine)] — (If one whom I freed immediately from a state of tumah) upon his standing (i.e., upon his return to the encampment), I had held (in a state of tumah) in his going (into quarantine) for seven days, then one whom I held (in his state of tumah for seven days, [namely, a healed confirmed leper]) in his standing, (i.e., upon his return to the encampment after his first shaving [viz. Vayikra 14:8]), does it not follow that I should have held him for seven days (in a state of tumah) in his going (i.e., in the interval between his being healed from the plague-spot and his return to the encampment!) R. Akiva said to him: I can add to your words, viz.: Where would Scripture be more stringent? In the days of confirmation (of absolute leprosy), or in the days of counting (i.e., the seven days between the first shaving and the second)? The days of confirmation are more stringent than the days of counting. For in the days of counting he does not confer tumah through couch (mishkav) or seat (moshav), and he does not confer tumah (to a house) through entry, whereas in the days of confirmation, he does. And if for the days of counting, which are less stringent, you have accorded seven, then for the days of confirmation, should not seven be accorded! Munbaz: Master, indeed, you have substantiated my words! R. Akiva: And when you accord seven for the days of confirmation, they, likewise, become days of counting, so that both combined become fourteen. And if to the less stringent days of counting you have accorded fourteen, then how much more so should fourteen be accorded to the more stringent days of confirmation, so that the process should continue interminably. And it is precisely to countermand such reasoning that Scripture must state "On the day of his cleansing he shall be brought to the Cohein (for the cleansing procedure)" — he shall not delay (from his being healed of the plague-spot to his being cleansed).

6) (Vayikra 14:8) ("And the one to be cleansed shall wash his clothes, and he shall shave all of his hair, and he shall bathe in water, and he shall be clean; and then he shall come into the camp. And he shall sit outside his tent for seven days.") "And the one to be cleansed shall wash his clothes": R. Shimon said: What does this come to teach us? If to confer tumah upon garments by contact, does this not follow a fortiori? viz.: If in the days of his counting (seven days, after having brought the birds), when he does not confer tumah by entry (into a house), he does confer tumah upon garments by contact (viz. Vayikra 14:9 "And he shall wash his clothes"), then in the days of his confirmation (of absolute leprosy, i.e., our instance), when he does confer tumah by entry, how much more so should he confer tumah upon garments by contact! If so, why is it written "And the one to be cleansed shall wash his clothes"? (He must wash them) from mishkav (couch) and moshav (seat) tumah, (their having become tamei by being under him, even though he did not touch them.) For there are two types of garment washing: one, for mishkav and moshav tumah (our instance); the other, for conferring tumah upon garments by contact (that in verse 14:9).

7) "and he shall shave all of his hair": I might think even his (normally) covered hair. And this would follow (by the following line of reasoning:) Shaving is mentioned in respect to his days of counting (Vayikra 14 verse 9), and shaving is mentioned in respect to his days of confirmation (Vayikra 14 verse 8). Just as the former excludes covered hair, so the latter excludes covered hair.