Zahir said terrorists need to face the same fate, adding that government has not assisted the uprising civilians therefore it should not stand in front of them.
His comments come after the uprising civilians under his command beheaded four members of ISIS to revenge.
ISIS had earlier cut off heads from four civilians in Achin district provoking others to do the same to the group.
Two of the four militants beheaded belonged to Tirah valley while the two others were from Orakzai Agency of Pakistan, Mujahid the governor of Achin district said.
ISIS has killed people through shooting and blowing them up with bombs in parts of Nangarhar province.
The fighters groups have also burnt houses of civilians after accusing them for supporting government.