How can I make a Dash Hitbox?

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1

I made a Dash but I don’t know how to make a hitbox for it, I tried put a touched event but for some reason I couldn’t disconnect it, now i’m trying using getpartsinpart() and getpartsBoundInBox() but apparently the dash is too fast so the event don’t fires, here’s my script:

task.spawn(function()
				while Z == true do task.wait()
					for _, part in ipairs(workspace:GetPartBoundsInBox(Detect.CFrame,Detect.Size,overlapP)) do
						if part.Parent.Name ~= player.Character.Name and part.Parent:FindFirstChild("Humanoid")
						then 
							local humanoid = part.Parent.Humanoid
							if humanoid:FindFirstChild(player.Name.."BsDash") then return
							else
								print("Dashed") humanoid:TakeDamage(10)
								local Dbv = Instance.new("BoolValue")
								Dbv.Name = player.Name.."BsDash"
								Dbv.Parent = humanoid
								game:GetService("Debris"):AddItem(Dbv,3)
							end end end end end)