Mambo Ya Walawi 15:7

“ ‘Yeyote atakayemgusa mtu mwenye kutokwa na usaha, ni lazima afue nguo zake na aoge kwa maji, naye atakuwa najisi mpaka jioni.

And he that toucheth the flesh of him that hath the issue shall wash his clothes, and bathe himself in water, and be unclean until the even.