The group depicted as a “heresy” (Heresy/Heretical) only known from two short accounts, that is, from Aug. Haer. 87 (in epilogue 2 of De haeresibus, Augustine of Hippo also mentioned them briefly), and the so-called Praedestinatus (1.87) whose authorship is not entirely certain. The latter extensively reproduced the former, often even following its wording exactly, which means that our information about this sect is reduced almost completely to a single short source.
According to Augustine’s account (and its different versions in the manuscripts), the adherents of t…