We don’t want people to think that any case of ????? ??? ?????? ?????? ?????? is a Yid, since this would bring about big trouble. Lav Davka is the case of having a brother the same person to whom you want to return the money.
And if they he was Megayer with his mother and father and his father ended up having more sons from a different wife and the first wife dies, the Shaala is ???? as well.