Soattāsutta

sn24.3:4.1 “When a noble disciple has given up doubt regarding these six grounds, and has given up doubt in suffering, its origin, its cessation, and the practice that leads to its cessation,

sn24.3:4.2 they’re called a noble disciple who is a stream-enterer, not liable to be reborn in the underworld, assured, destined for awakening.”