Prajñāpāramitā is both the sixth perfection and the name of a large body of early Mahāyāna sūtras, from the Perfection of Wisdom in Eight Thousand Lines to the short Heart and Diamond Sūtras. They teach that all things are empty of inherent existence, and personify wisdom as the mother of all buddhas.
Prajñāpāramitā
The perfection of wisdom: the insight into emptiness, and the sūtras that teach it.
Also: Prajnaparamita, perfection of wisdom