一部經，佛陀以手中一把樹葉為喻，說明他所揭示的苦、集、滅、道方能導向涅槃，而未曾揭示的知識雖如林中樹葉般浩瀚卻無此功用。

A discourse in which the Buddha, using a handful of leaves as simile, teaches that what he has revealed — suffering, its cause, cessation, and the path — is what conduces to nibbāna, unlike the vastly greater unrevealed knowledge.