Numbers 35:20

Or if he struck him with a weapon of wood in the hand, by which a man may die, and he died, he is a ...

The avenger of blood shall himself put the murderer to death: when he meets him, he shall put him to...

or in enmity struck him with his hand, so that he died; he who struck him shall surely be put to dea...

"'But if he thrust him suddenly without enmity, or hurled on him anything without lying in wait,