the ”characteristic qualities of a Stream-winner” are 4: unshakable faith towards the Enlightened One, unshakable faith towards the Doctrine, unshakable faith towards the Order, and perfect morality. Explained in S. LV, I, D. 33, in S. XLVII, 8 and in Netti-ppakarana these 4 qualities are called sota^pattiyanga (q.v.).