How do i make my kamehameha destroy stuff?

i want my Kamehameha to create an explosion when it touches things but it wont do that i cant find the problem in my script

function onTouched(hit)
e = Instance.new("Explosion")
e.Position=script.Parent.Position
e.Parent=workspace
e.BlastRadius = 2
end
script.Parent.Touched:connect(onTouched)

https://gyazo.com/80e8950ae34345684d4a23a6310ee294

You need your script to detect if the kamehameha even touched something, or the script may error.