Luke 20:28

“Teacher,” they said, “Moses wrote for us that if a man’s brother dies and leaves a wife but no children, the man is to marry his brother’s widow and raise up offspring for him.

Note Deuteronomy 25:5

Saying, Master, Moses wrote unto us, If any man’s brother die, having a wife, and he die without children, that his brother should take his wife, and raise up seed unto his brother.

They asked him, “Teacher, Moses wrote to us that if a man’s brother dies having a wife, and he is childless, his brother should take the wife and raise up children for his brother.

and they asked him, saying, Teacher, Moses wrote unto us, that if a man’s brother die, having a wife, and he be childless, his brother should take the wife, and raise up seed unto his brother.