Mambo Ya Walawi 13:58

Nguo, au kitu kilichofumwa au kusokotwa, au kifaa chochote cha ngozi ambacho kimesafishwa na kuondolewa upele, ni lazima kioshwe tena, nacho kitakuwa safi.”

And the garment, either warp, or woof, or whatsoever thing of skin it be, which thou shalt wash, if the plague be departed from them, then it shall be washed the second time, and shall be clean.