Yadi evaṃ, kasmā "satipaṭṭhānā"ti bahuvacanaṃ? satibahuttā. Ārammaṇabhedena Hi bahukā etā satiyo. Atha maggoti kasmā ekavacanaṃ? maggaṭṭhena ekattā. Catassopi hi etā satiyo maggaṭṭhena ekattaṃ gacchanti. Vuttañhetaṃ "maggoti kenaṭṭhena maggo, nibbānagamanaṭṭhena, nibbānatthikehi magganīyaṭṭhena cā"ti. Catassopi cetā aparabhāge kāyādīsu ārammaṇesu kiccaṃ sādhayamānā nibbānaṃ

@satipaṭṭhānakathā 4 ka. tadariyo 5 Ma. upari. 14/311/284 saḷāyatanavibhaṅgasutta.

@6 saṃ. mahā. 19/989/285 paṭhamaānandasutta 7 cha.Ma. okantitvā, Sī. okkhanditvā Gacchanti. Ādito paṭṭhāya ca nibbānatthikehi maggiyanti, tasmā catassopi eko maggoti vuccati, evañca sati vacanānusandhinā sānusandhikāva desanā hoti, "mārasenappamaddanaṃ vo bhikkhave maggaṃ desessāmi, taṃ suṇātha, .pe. Katamo ca bhikkhave mārasenappamaddano maggo? yadidaṃ sattabojjhaṅgā"tiādīsu Viya yathā mārasenappamaddanoti ca sattabojjhaṅgāti ca atthato ekaṃ, byañjanamevettha ca nānaṃ. Evaṃ ekāyanamaggoti ca cattāro satipaṭṭhānāti atthato ekaṃ, byañjanamevettha nānaṃ. Tasmā maggaṭṭhena ekattā ekavacanaṃ, ārammaṇabhedena satibahuttā bahuvacanaṃ veditabbaṃ.