Genesis 44:19
Your Excellency asked his servants, "Do you have a father or brother?'
Genesis 43:7
"The man specifically asked about us and our relatives," they responded. "He asked us, "Is your father still alive?' and "Do you have another brother?' So we answered his questions. How could we have known that he would tell us to bring our brother back with us?"
Genesis 42:7-10
As soon as Joseph saw his brothers, he knew who they were, but he remained disguised and asked them gruffly, "Where are you from?" "From the land of Canaan," they replied. "We're here to buy food."
Genesis 43:29
As Joseph looked up and recognized his brother Benjamin, his own mother's son, he asked, "Is this your youngest brother about whom you spoke to me?" And he addressed him directly, "May God be gracious to you, my son."