Genesis 44:19
My lord asked his servants, 'Do you have a father or a brother?'
Genesis 43:7
They replied, "The man questioned us thoroughly about ourselves and our family, saying, 'Is your father still alive? Do you have another brother?' So we answered him in this way. How could we possibly know that he would say, 'Bring your brother down'?"
Genesis 42:7-10
When Joseph saw his brothers, he recognized them, but he pretended to be a stranger to them and spoke to them harshly. He asked, "Where do you come from?" They answered, "From the land of Canaan, to buy grain for food."
Genesis 43:29
When Joseph looked up and saw his brother Benjamin, his mother's son, he said, "Is this your youngest brother, whom you told me about?" Then he said, "May God be gracious to you, my son."