they demand you to bring upon them torment immediately. had not the time been fixed the torment would certainly have approached them. it would have come to them suddenly and they would not have even realized how it came.
ويستعجلونك بالعذاب ولولا أجل مسمى لجاءهم العذاب وليأتينهم بغتة وهم لا يشعرون