一部於祇陀林所說的經，佛陀應阿難所問，說明比丘如何於界、處、緣起及可能與不可能之理上得善巧，另有數個別名。

A discourse given at Jetavana in which the Buddha answers Ānanda’s questions on how a monk masters the elements, the senses, causation, and the possible and impossible, also known by several other names.