Note 17 — Chapter XVII · SAṄKÂŚYA. BUDDHA’S ASCENT TO AND DESCENT FROM THE TRAYASTRIṂŚAS HEAVEN, AND OTHER LEGENDS.
James Legge translation
Has always been translated ‘heretical teachers;’ but I eschew the terms heresy and heretical. The parties would not be Buddhists of any creed or school, but Brahmâns or of some other false doctrine, as Fâ-hien deemed it. The Chinese term means ‘outside’ or ‘foreign;’—in Pâli, añña-titthiyâ, = ‘those belonging to another school.’