Mambo Ya Walawi 20:18

“ ‘Ikiwa mwanaume atalala na mwanamke aliye katika hedhi yake na kukutana naye kimwili, amefunua mtiririko wa hedhi yake, naye huyo mwanamke amejifunua uchi wake. Wote wawili lazima wakatiliwe mbali na watu wao.

And if a man shall lie with a woman having her sickness, and shall uncover her nakedness; he hath discovered her fountain, and she hath uncovered the fountain of her blood: and both of them shall be cut off from among their people.