Brahmajalasutta 3.27.2

3.27.2

Ye hi keci, bhikkhave, samaṇā vā brāhmaṇā vā aparantakappikā aparantānudiṭṭhino aparantaṃ ārabbha anekavihitāni adhimuttipadāni abhivadanti, sabbe te imeheva catucattārīsāya vatthūhi …

Any ascetics and brahmins who speculate and theorize about the final end do so on one or other of these forty-four grounds. Outside of this there is none.