Brahmajalasutta 1.34.5

1.34.5

Idaṃ, bhikkhave, catutthaṃ ṭhānaṃ, yaṃ āgamma yaṃ ārabbha eke samaṇabrāhmaṇā sassatavādā sassataṃ attānañca lokañca paññapenti.

This is the fourth ground on which some ascetics and brahmins rely to assert that the self and the cosmos are eternal.