At one time Venerable Sāriputta was staying near Sāvatthī in Jeta’s Grove, Anāthapiṇḍika’s monastery. Then in the late afternoon, Venerable Ānanda came out of retreat … and said to Sāriputta:

“Reverend, how many things do people have to possess in order for the Buddha to declare that they’re a stream-enterer, not liable to be reborn in the underworld, bound for awakening?”

“Reverend, people have to possess four things in order for the Buddha to declare that they’re a stream-enterer, not liable to be reborn in the underworld, bound for awakening.

What four? It’s when a noble disciple has experiential confidence in the Buddha … the teaching … the Saṅgha … And they have the ethical conduct loved by the noble ones … leading to immersion. People have to possess these four things in order for the Buddha to declare that they’re a stream-enterer, not liable to be reborn in the underworld, bound for awakening.”