Brahmajalasutta 2.33.2

2.33.2

Ye hi keci, bhikkhave, samaṇā vā brāhmaṇā vā adhiccasamuppannikā adhiccasamuppannaṃ attānañca lokañca paññapenti, sabbe te imeheva dvīhi vatthūhi, etesaṃ vā aññatarena, natthi ito bahiddhā …

Any ascetics and brahmins who speculate and theorize about anomalous origination do so on one or other of these two grounds. Outside of this there is none.