佛陀在迦然伽羅對年輕婆羅門郁多羅所說的一部經，糾正其師「根律儀即不見不聞」之說，轉而教導正確修習諸根之道。

A discourse at Kajaṅgalā in which the Buddha corrects a young brahmin’s notion, learned from his teacher, that sense-faculty development means simply not seeing or hearing, teaching instead the proper cultivation of the faculties.