TSK · Leviticus 18:16

¶ If brethren dwell together, and one of them die, and have no child, the wife of the dead shall not marry without unto a stranger: her husband's brother shall go in unto her, and take her to him to wife, and perform the duty of an husband's brother unto her.

Saying, Master, Moses said, If a man die, having no children, his brother shall marry his wife, and raise up seed unto his brother.

Master, Moses wrote unto us, If a man's brother die, and leave [his] wife [behind him], and leave no children, that his brother should take his wife, and raise up seed unto his brother.