Mambo ya Walawi 20 : 20 Leviticus chapter 20 verse 20

Tena mtu mume akilala na mke wa mjomba wake, ameufunua utupu wa mjomba wake; watauchukua uovu wao; watakufa bila kuzaa mwana.
soma Mlango wa 20

If a man lies with his uncle's wife, he has uncovered his uncle's nakedness: they shall bear their sin; they shall die childless.