Genesis 44:18-20

18Then Judah went and he spoke to Joseph. He said, ‘Please, my lord. Let me speak to you. You have all of Pharaoh's authority, but please do not be angry with me, your servant.

19You asked us, “Do you have a father or another brother?”

20And we replied, “We have a father who is very old. He has a young son who was born when our father was already old. That son's brother is dead. He is the only son of his mother who still lives. His father loves him.”