Talk:Namtar Vase/@comment-5782071-20190904191502/@comment-31772644-20190904221800

Feyredon is said to have been endowed with the divine radiance of kings (Khvarenah, New Persian farr) for life, and was able to defeat Dahāg, striking him with a mace. However, when he did so, vermin (snakes, insects and the like) emerged from the wounds, and the god Ormazd told him not to kill Dahāg, lest the world become infested with these creatures. Instead, Frēdōn chained Dahāg up and imprisoned him on the mythical Mt. Damāvand[citation needed] (later identified with Damāvand).

The Middle Persian sources also prophesy that at the end of the world, Dahāg will at last burst his bonds and ravage the world, consuming one in three humans and livestock.

it's an obscure link, but there really isn't much in the way of Afghani folklore.