バラモンのピンガラコッチャに、梵行の目的は利益・名誉・戒・定・知見ではなく、ただ不死の解脱のみであると、木の真の心材にたとえて仏陀が説く経典。

A discourse to the brahmin Piṅgalakoccha in which the Buddha explains that the goal of the holy life lies not in gain, esteem, virtue, concentration or insight, but in immortal deliverance alone, likened to the very heartwood of a tree.