when and how do we finally see amir telling the truth? chapter 19

When Wahid asked Amir why he had returned to Afghanistan, Farid interrupted. He ranted about how people returned their only to be greedy and milk money out of their old properties. Wahid scolded Farid for his rudeness. Then Amir explained why he was really in Afghanistan. At this, Wahid called him, "An honorable man ... A true Afghan." Farid was ashamed at his own presumptuousness. Later he apologized to Amir, who told him, "You were more right than you know."