Genesis 43:1

And it came to pass, when they had eaten up the corn which they had brought out of Egypt, their father said unto them, Go again, buy us a little food.

And Judah spake unto him, saying, The man did solemnly protest unto us, saying, Ye shall not see my face, except your brother be with you.

If thou wilt send our brother with us, we will go down and buy thee food:

But if thou wilt not send him, we will not go down: for the man said unto us, Ye shall not see my face, except your brother be with you.