What is the Islamic ruling on sapphism (female fornication), and does it necessitate the prescribed punishment (حد)?

Lesbianism is forbidden and considered one of the major sins. There is no prescribed legal punishment for it. It differs from adultery (zina). Adultery is the insertion of the glans into a forbidden vagina that is naturally desired. As for lesbianism, it is an act of a woman with another woman, involving no insertion, and it is not naturally desired; rather, it is practiced out of perversion.