Sāvakasutta

sn15.7:1.1 At Sāvatthī.

sn15.7:1.2 Then several mendicants went up to the Buddha … and asked him,

sn15.7:1.3 “Sir, how many eons have passed?”

sn15.7:1.4 “Mendicants, many eons have passed.

sn15.7:1.5 It’s not easy to calculate

sn15.7:1.6 how many eons have passed, how many hundreds or thousands or hundreds of thousands of eons.”