An arahant. He was a landowner in Sāvatthi and joined the Order after hearing the Buddha preach. But he was often seized by fits of lustful passion, and even when, following the Buddha's instructions, he meditated in the charnel field, he could not control the tendency. The Buddha himself went with him and bade him mark the putrefaction and dissolution of dead bodies around him. He attained first jhāna, developing which he won arahantship (ThagA.i.444f).
The Theragāthā verses (393-8) ascribed to him are a record of this experience.