Paṭhamabhikkhusutta

sn51.29:1.1 Then several mendicants went up to the Buddha, bowed, sat down to one side, and said to him:

sn51.29:1.2 “Sir, what is psychic power? What is the basis of psychic power? What is the development of the bases of psychic power? And what is the practice that leads to the development of the bases of psychic power?”