וְהִזָּ֤ה הַטָּהֹר֙ עַל־הַטָּמֵ֔א בַּיּ֥וֹם הַשְּׁלִישִׁ֖י וּבַיּ֣וֹם הַשְּׁבִיעִ֑י וְחִטְּאוֹ֙ בַּיּ֣וֹם הַשְּׁבִיעִ֔י וְכִבֶּ֧ס בְּגָדָ֛יו וְרָחַ֥ץ בַּמַּ֖יִם וְטָהֵ֥ר בָּעָֽרֶב׃
L’homme pur fera donc aspersion sur l’impur, au troisième et au septième jour; et lorsqu’il l’aura purifié le septième jour, l’autre lavera ses vêtements, se baignera dans l’eau, et sera pur le soir.
Sefer HaMitzvot
That is that He commanded us and instructed us [to administer] the laws of purification water, about which they said that it renders impure in one way and purifies in another way, as is explained in the analysis of this commandment. And you should know that these thirteen types of impurities, the counting of which preceded this - they being the impurities of a carcass, of creeping animals; of foods and drinks; of a menstruant woman; of a woman after childbirth; of tsaraat of a person; of [tsaraat of garments;] of tsaraat of houses; of a zav; of a zavah; of semen; of a corpse; and of purifying waters - and their purification of each one of them is written in the Torah in many verses and with many laws and stipulations; as is written in Parashat Shemini, Parashat Tazria and Metzora and in Parashat, Parashat Parah. And these four sections completely include all of these impurities. (See Parashat Chukat; Mishneh Torah, Defilement by a Corpse 1-25.)
Sefer Hamitzvot of Rasag
And similarly one who touches them becomes impure. Gimel Concluded are the forty five commandments about separating impurity, not to approach it. Included were one hundred and three priestly commandments, which are intertwined with them. Bet Among them were included the first set, in total two hundred practices. Aleph These are the positive commandments that the lofty Sages discussed.