Mahasamayasutta 1.2

1.2

ekaṃ samayaṃ bhagavā sakkesu viharati kapilavatthusmiṃ mahāvane mahatā bhikkhusaṅghena saddhiṃ pañcamattehi bhikkhusatehi sabbeheva arahantehi;

At one time the Buddha was staying in the land of the Sakyans, in the Great Wood near Kapilavatthu, together with a large Saṅgha of five hundred mendicants, all of whom were perfected ones.