Zina does not refer only to penetration, rather there is 1- the zina of the hand, 2- the zina of the eyes, and 3- the zina of the tongue, even though zina that is committed with the private parts, is the zina which is punishable with the hadd in Islam.

The imams are agreed that there is no certain punishment for lesbianism because it is not zina, rather it is to be punished with a ta`zir punishment in which the judge punishes the one who does that with a punishment which will deter her and others from doing this haram action.