Nidānakathāvaṇṇanā
Evaṃ yathāvuttena vividhena nayena paṇāmādikaṃ pakaraṇārambhavidhānaṃ katvā idāni vibhāgavantānaṃ sabhāvavibhāvanaṃ vibhāgadassanavaseneva suvibhāvitaṃ, suviññāpitañca hotīti paṭhamaṃ tāva vaggasuttavasena vibhāgaṃ dassetuṃ ‘‘tattha dīghāgamo nāmā’’tiādimāha. Tattha tatthāti ‘‘dīghassa āgamavarassa atthaṃ pakāsayissāmī’’ti yadidaṃ vuttaṃ, tasmiṃ vacane. ‘‘Yassa atthaṃ pakāsayissāmī’’ti paṭiññātaṃ, so dīghāgamo nāma vaggasuttavasena evaṃ veditabbo, evaṃ vibhāgoti vā attho. Atha vā tatthāti ‘‘dīghāgamanissita’’nti yaṃ vuttaṃ, etasmiṃ vacane. Yo dīghāgamo vutto, so dīghāgamo nāma vaggasuttavasena. Evaṃ vibhajitabbo, edisoti vā attho. ‘‘Dīghassā’’tiādinā hi vuttaṃ dūravacanaṃ taṃ-saddena paṭiniddisati viya ‘‘dīghāgamanissita’’nti vuttaṃ āsannavacanampi taṃ-saddena paṭiniddisati attano buddhiyaṃ parammukhaṃ viya parivattamānaṃ hutvā pavattanato. Edisesu hi ṭhānesu attano buddhiyaṃ sammukhaṃ vā parammukhaṃ vā parivattamānaṃ yathā tathā vā paṭiniddisituṃ vaṭṭati saddamattapaṭiniddesena atthassāvirodhanato. Vaggasuttādīnaṃ nibbacanaṃ parato āvi bhavissati. Tayo vaggā yassāti tivaggo. Catuttiṃsa suttāni ettha saṅgayhanti, tesaṃ vā saṅgaho gaṇanā etthāti catuttiṃsasuttasaṅgaho.
Attano saṃvaṇṇanāya paṭhamasaṅgītiyaṃ nikkhittānukkameneva pavattabhāvaṃ dassetuṃ ‘‘tassa…pe… nidānamādī’’ti vuttaṃ. Ādibhāvo hettha saṅgītikkameneva veditabbo. Kasmā pana catūsu āgamesu dīghāgamo paṭhamaṃ saṅgīto, tattha ca sīlakkhandhavaggo paṭhamaṃ nikkhitto, tasmiñca brahmajālasuttaṃ, tatthāpi nidānanti? Nāyamanuyogo katthacipi na pavattati sabbattheva vacanakkamamattaṃ paṭicca anuyuñjitabbato. Apica saddhāvahaguṇattā dīghāgamova paṭhamaṃ saṅgīto. Saddhā hi kusaladhammānaṃ bījaṃ. Yathāha ‘‘saddhā bījaṃ tapo vuṭṭhī’’ti (saṃ. ni. 2.197; su. ni. 77). Saddhāvahaguṇatā cassa heṭṭhā dassitāyeva. Kiñca bhiyyo – katipayasuttasaṅgahatāya ceva appaparimāṇatāya ca uggahaṇadhāraṇādisukhato paṭhamaṃ saṅgīto. Tathā hesa catuttiṃsasuttasaṅgaho, catusaṭṭhibhāṇavāraparimāṇo ca. Sīlakathābāhullato pana sīlakkhandhavaggo paṭhamaṃ nikkhitto. Sīlañhi sāsanassa ādi sīlapatiṭṭhānattā sabbaguṇānaṃ. Tenevāha ‘‘tasmā tiha tvaṃ bhikkhu ādimeva visodhehi kusalesu dhammesu. Ko cādi kusalānaṃ dhammānaṃ? Sīlañca suvisuddha’’ntiādi (saṃ. ni. 5.469). Sīlakkhandhakathābāhullato hi so ‘‘sīlakkhandhavaggo’’ti vutto. Diṭṭhiviniveṭhanakathābhāvato pana suttantapiṭakassa niravasesadiṭṭhivibhajanaṃ brahmajālasuttaṃ paṭhamaṃ nikkhittanti veditabbaṃ. Tepiṭake hi buddhavacane brahmajālasadisaṃ diṭṭhigatāni niggumbaṃ nijjaṭaṃ katvā vibhattasuttaṃ natthi. Nidānaṃ pana paṭhamasaṅgītiyaṃ mahākassapattherena puṭṭhena āyasmatā ānandena desakālādinidassanatthaṃ paṭhamaṃ nikkhittanti. Tenāha ‘‘brahmajālassāpī’’tiādi. Tattha ca ‘‘āyasmatā’’tiādinā desakaṃ niyameti, paṭhamasaṅgītikāleti pana kālanti, ayamattho upari āvi bhavissati.