Porāṇakattherā kira piyadhammassavanā honti. Saddaṃ sutvāva "ahaṃ paṭhamaṃ, ahaṃ paṭhaman"ti ekappahāreneva osaranti. Tasmiṃ ca divase cūḷanāgattherassa

Tena dhammāsane nisīditvā vījaniṃ gahetvā pubbakathāsu vuttāsu therassa āsanapiṭṭhiyaṃ ṭhitassa etadahosi "raho nisīditvā na vakkhāmī"ti. Porāṇakattherā hi anusuyyakā honti, na attano rucimeva ucchubhāraṃ viya evaṃ ukkhipitvā vicaranti, kāraṇameva gaṇhanti, akāraṇaṃ visajjenti, tasmā thero "āvuso cūḷanāgā"ti āha. So ācariyassa viya saddoti dhammaṃ ṭhapetvā "kiṃ bhante"ti āha. Āvuso cūḷanāga mayā vutto missakamaggo na labbhati, tayā vutto pubbabhāgasatipaṭṭhānamaggova labbhatīti.

Thero cintesi "amhākaṃ ācariyo sabbapariyattiko tipiṭako sutabuddho, evarūpassāpi nāma bhikkhuno ayaṃ pañho āluḷeti, anāgate mama bhātikā imaṃ pañhaṃ āluḷessantīti suttaṃ gahetvā imaṃ pañhaṃ niccalaṃ karissāmīti. Paṭisambhidāmaggato "ekāyanamaggo vuccati pubbabhāgasatipaṭṭhānamaggo:-

"maggānaṭṭhaṅgiko seṭṭho saccānaṃ caturo padā