Mambo Ya Walawi 27:15

Kama mtu aliyeweka nyumba yake wakfu ataikomboa, lazima aongeze sehemu ya tano ya thamani yake, nayo nyumba itakuwa yake tena.

And if he that sanctified it will redeem his house, then he shall add the fifth part of the money of thy estimation unto it, and it shall be his.