Mambo Ya Walawi 15:13

“ ‘Wakati mtu atakapotakasika kutoka usaha wake, anapaswa kuhesabu siku saba kwa utakaso wake. Ni lazima afue nguo zake na aoge kwa maji safi, naye atatakasika.

And when he that hath an issue is cleansed of his issue; then he shall number to himself seven days for his cleansing, and wash his clothes, and bathe his flesh in running water, and shall be clean.