楞伽阿跋多羅寶經註解 2.226

2.226

"Mahāmati, those four propositions mean leaving behind identity and difference, both and neither, existence and nonexistence, neither existence nor nonexistence, and permanence and impermanence; these are called the four propositions. Mahāmati, being free from these four propositions is called all dharmas. Mahāmati, contemplating all dharmas through these four propositions should be cultivated and studied."