Hi Tzungkuen, > Does anyone happen to know any commentarial reference to the following claim? > > -------------- > Ariyapuggalaana.m hi vipassantaana.m pat.hama.m udayabbaya~naan.ameva uppajjatii'ti ayamettha dhammataa. (Mahasi Sayadaw's The Progress of Insight) > > When the Noble Disciples (namely, tream-winners, etc.) resume the practice of Insight, the Knowledge of Arising and Passing Away usually arises at the beginning. This is the usual course of order in this respect. (Nyanaponika's translation) I would guess the Sayadaw has Visuddhimagga 863 (Path of Purification XXIII 10) in mind. ayampanettha samaapajjanakkamo. phalasamaapattatthikena hi ariyasaavakena rahogatena pa.tisalliinena udayabbayaadivasena sa`nkhaaraa vipassitabbaa. tassa pavattaanupubbavipassanassa sa`nkhaaraaramma.nagotrabhu~naa.naanantaraa phalasamaapattivasena nirodhe citta.m appeti. phalasamaapattininnataaya cettha sekkhassaapi phalameva uppajjati, na maggo. And its .tiikaa: _udayabbayaadivasenaa_ ti udayabbayabha`ngabhayatupa.t.thaanaadivasena pavattanakaana.m navannampi ~naa.naana.m byaapaara.m vadati. tenaaha _"pavattaanupubbavipassanassaa"_ ti. Best wishes, Dhammanando