The ruling on killing snakes and the difference between them and the adder

Question:
In the same matter, in the previous lesson, it was mentioned that the two black ones are to be killed in prayer: the snake and the adder. Is there a difference between the snake and the adder? Or is it that every adder is killed, whether in prayer or elsewhere, without warning? And is the snake considered among the harmful creatures?

Answer:
The snake is among the harmful creatures, yes. The scorpion is among the harmful creatures that are killed everywhere, including in the Haram. All types of snakes are killed because they pose a harm and danger to people, except for the house snakes. As for the house snakes, they are to be warned. If they do not leave the people of the house, they are killed after the warning. Some scholars specified this ruling for the house snakes in Madinah specifically, while others generalized it to house snakes in any location. The conclusion is that no exception is made except for the house snakes. As for the rest of the snakes, they are killed.