What was Hassan doing in Afghanistan while Amir was in America?

While Amir was in America, Hassan got married and had a child. He and his wife were living in hut when Rahim went to visit them, and the couple ended up moving in with Rahim. He later reunited with his mother, and she moved in with them until her death. Hassan's son, Sohrab, loved his grandmother,

can I have the quotes and the number pages where indicates this events?