[1621] "Bhikkhus, a noble disciple (ariyasāvaka) who possesses four things is a stream-enterer (sotāpanna), no longer subject to downfall (avinipātadhamma), fixed in destiny, with awakening as his final destination. Which four? Here, bhikkhus, a noble disciple possesses unwavering confidence (aveccappasāda) in the Buddha thus: 'Thus indeed is that Blessed One … teacher of devas and humans, the Buddha, the Blessed One.' … in the Dhamma … in the Saṅgha … He possesses the virtues dear to the noble ones—unbroken … conducive to concentration (samādhi). Bhikkhus, a noble disciple who possesses these four things is a stream-enterer, no longer subject to downfall, fixed in destiny, with awakening as his final destination." This is what the Blessed One said.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.