Sīlavantasutta
Ekaṁ samayaṁ āyasmā ca sāriputto āyasmā ca mahākoṭṭhiko bārāṇasiyaṁ viharanti isipatane migadāye. Atha kho āyasmā mahākoṭṭhiko sāyanhasamayaṁ paṭisallānā vuṭṭhito yenāyasmā sāriputto tenupasaṅkami …pe… etadavoca: “sīlavatāvuso, sāriputta, bhikkhunā katame dhammā yoniso manasikātabbā”ti? “Sīlavatāvuso, koṭṭhika, bhikkhunā pañcupādānakkhandhā aniccato dukkhato rogato gaṇḍato sallato aghato ābādhato parato palokato suññato anattato yoniso manasi kātabbā. Katame pañca? Seyyathidaṁ—rūpupādānakkhandho, vedanupādānakkhandho, saññupādānakkhandho, saṅkhārupādānakkhandho, viññāṇupādānakkhandho. Sīlavatāvuso, koṭṭhika, bhikkhunā ime pañcupādānakkhandhā aniccato dukkhato rogato gaṇḍato sallato aghato ābādhato parato palokato suññato anattato yoniso manasi kātabbā. Ṭhānaṁ kho panetaṁ, āvuso, vijjati yaṁ sīlavā bhikkhu ime pañcupādānakkhandhe aniccato …pe… anattato yoniso manasi karonto sotāpattiphalaṁ sacchikareyyā”ti.
An Ethical Mendicant
At one time Venerable Sāriputta and Venerable Mahākoṭṭhita were staying near Varanasi in the deer park at Isipatana. Then in the late afternoon, Venerable Mahākoṭṭhita came out of retreat, went to Venerable Sāriputta, and said: “Reverend Sāriputta, what things should an ethical mendicant rationally apply the mind to?” “Reverend Koṭṭhita, an ethical mendicant should rationally apply the mind to the five grasping aggregates as impermanent, as suffering, as diseased, as a boil, as a dart, as gloom, as an affliction, as alien, as breaking apart, as empty, as not-self. What five? That is, the grasping aggregates of form, feeling, perception, choices, and consciousness. An ethical mendicant should rationally apply the mind to these five grasping aggregates as impermanent, as suffering, as diseased, as a boil, as a dart, as gloom, as an affliction, as alien, as breaking apart, as empty, as not-self. It’s possible that an ethical mendicant who rationally applies the mind to the five grasping aggregates will realize the fruit of stream-entry.”