Is it permissible to kill ants?

Answer

Ants and bees should not be killed unnecessarily. Hadhrat Abdullah Ibn Abbaas (radhiyallahu anhu) said that Rasulullah (sallallahu alayhi wasallam) prohibited killing ants and bees.

Therefore, as far as possible refrain from killing them. When there is a real need for killing them, never use fire. Once Rasulullah (sallallahu alayhi wasallam) saw a burnt-out anthill. When he enquired about it, some Sahaabah admitted having burnt the anthill. Nabi-e-Kareem (sallallahu alayhi wasallam) was annoyed and said that it befits only Allah Azza Wa Jal to punish with fire.