Is the killing of a dog whose keeping is permissible considered forbidden (Haram)?
Chapter on Selling the Musarrah (Animal with milk retained in udder)
Al-Mughni
Book of Sales
Primary text
It is forbidden to destroy a dog whose keeping is permissible because it is an object of permissible benefit, and destroying it is analogous to destroying a permissible sheep. The person who does so is sinful and unjust. There is no known dispute regarding this prohibition.