וְאִ֡ם בְּאֶ֣בֶן יָד֩ אֲשֶׁר־יָמ֨וּת בָּ֥הּ הִכָּ֛הוּ וַיָּמֹ֖ת רֹצֵ֣חַֽ ה֑וּא מ֥וֹת יוּמַ֖ת הָרֹצֵֽחַ׃
At kung sinaktan niya siya ng batong kasinlaki ng dakot ng kamay, na maaaring ikamatay, at siya ay namatay, siya ay mamamatay-tao; ang mamamatay-tao ay tiyak na papatayin.
Mekhilta DeRabbi Yishmael
"with stone or fist": I might think that he is liable (only if he strikes) with these, but otherwise he is not liable; it is, therefore, written (Numbers 35:17) "And if with a hand-stone (i.e., a stone the size of a full hand) (whereby he can die he strike him"). He is not liable until he strikes him with something that has the potential to kill and in a locus which is critical to life.