Devarim 25:5

Devarim 25:5 OJB

If achim dwell together, and one of them die, and ben ain lo (have no child), the eshet hamet (wife of the dead) shall not marry outside unto an ish zar (strange man); her yevam (deceased husband's brother) shall go in unto her, and take her to him as a wife, and perform the levirate marriage.
OJB: Orthodox Jewish Bible