Yevamos 13:8-9

Yevamos 13:8

Let's say that a man who is married to two minor orphan girls dies. If his brother performs yibum or chalitzah with one of them, the other is exempt. The same is true if a man has two wives with congenital deafness. If he has one wife who is a minor and another with congenital deafness, yibum or chalitzah with one does not exempt the other. If he is married to one woman with congenital deafness and another woman with all her senses, yibum with the woman who has all her senses will exempt the woman with congenital deafness but yibum with the woman who has congenital deafness does not exempt the woman with all her senses. If he is married to an adult and a minor, yibum with the adult will exempt the minor but yibum with the minor does not exempt the adult.

Yevamos 13:9

Let’s say that a man is married to two minor orphan girls and he dies, then his brother performs yibum with the first widow and again with the second widow, or another brother then has relations with the second widow. In such a case, the first man is not disqualified from remaining married to the first widow. The same is true if a man has two wives with congenital deafness. If he has one wife who is a minor and another with congenital deafness, if the deceased’s brother performs yibum with the minor then again with the woman who has congenital deafness, or another brother then has relations with the woman who has congenital deafness, the first man is not disqualified from remaining married to the minor. If the deceased’s brother performs yibum with the woman who has congenital deafness and then with the minor, or another brother then has relations with the minor, the first man is disqualified from remaining married to the woman who has congenital deafness.