This scene belongs to an interpolated passage in the story of Bizhan and Manizha. On his way to rescue Bizhan from the pit, Rustam encounters Barkhiyas Div, the son of Akvan Div, whom Rustam had killed in the previous story. Barkhiyas is guarding the entrance to the pit, and Rustam fights and kills him. The story is found in the popular Kurdish version of the story of Bizhan and Manizha, see M. Mokri, La legende de Bizan-u Manija, version populaire du sud du Kurdistan, Paris, 1966, pp. 179-81 (translation).