lift/raise a hand against somebody
raise (one's) hand against (someone)
To punch or slap someone, or threaten to do so. It's a pathetic, cowardly man who would raise his hand against his own child. Times have changed, and teachers never raise their hands against their students anymore.
raise a hand against
Also, lift one's hand against. Threaten to hit or actually hit, as in She's never raised a hand against the children. [First half of 1500s]