อภิธรรมภาชนีย์
2. Abhidhammabhājanīyavaṇṇanā
[155] Abhidhammabhājanīye yathā heṭṭhā vipassakānaṃ upakāratthāya "cakkhvāyatanaṃ rūpāyatanan"ti yugalato āyatanāni vuttāni, tathā avatvā ajjhattikabāhirānaṃ sabbākārato sabhāvadassanatthaṃ "cakkhvāyatanaṃ sotāyatanan"ti evaṃ ajjhattikabāhiravavatthānanayena vuttāni.
[156] Tesaṃ niddesavāre tattha katamaṃ cakkhvāyatanantiādīni heṭṭhā vuttanayeneva veditabbāni.