Genesis 44:22-26

But we said to my lord, ‘The boy cannot leave his father, for if he should leave his father, his father would die.’

You said to your servants, however, ‘Unless your youngest brother comes down with you, you will not see my face again.’

So it came about when we went up to your servant my father, we told him the words of my lord.

And our father said, ‘Go back, buy us a little food.’

But we said, ‘We cannot go down. If our youngest brother is with us, then we will go down; for we cannot see the man’s face unless our youngest brother is with us.’