Taught at Jetavana. The Buddha explains to the assembled monks the six “sixes” — e.g., the six internal senses (hearing etc.), the six external sense-
The Commentary (MA.ii.1024 f) says that, apart from the sixty monks who became Arahants when the Buddha first taught the sutta, on each occasion of its teaching, by the Chief Disciples and by the eighty chief disciples, a like number attained Arahantship. In Sri Lanka, Malaya Mahādeva Thera taught it at sixty different places, and each time sixty monks became Arahants. Once, when Cūḷanāga Thera taught it at the Ambilahāravihāra, one thousand monks attained to Arahantship (MA.ii.1025).