Arash was to loose his arrow, on the 13th day of Tir, and where the arrow landed, would lie the border between the two kingdoms. Turan had suffered from the lack of rain, and Iran rejoiced at the settlement of the borders, then rain poured onto the two countries and there was peace between them. It is stated in Biruni's chronology that "by the order of God, the wind bore the arrow away from the mountains of Amol and brought the utmost frontier of Khorasan between Fergana and Tapuria." Gardizi has given a similar description, although he notes that "the arrow of Arash fell in the area between Fargana and Bactria."
