成唯識論演祕 5.185

5.185

具如《疏》明，有義彈云：或如古師，言實事者，因果體事；如四諦事，言實理者，四諦真理，即因果理。故五蘊云：謂於業果諦，實極正符，順名信業果，大乘虛空滅諦所收，非如有宗，故無有失。《疏》說為攝虛空，但總言實，此非大乘，不可依據。

This is fully explained in the Commentary. A different opinion criticizes it, saying: "Or, as former masters held, 'real facts' refers to the substantial facts of cause and effect, such as the facts of the Four Truths; 'real principles' refers to the true reality of the Four Truths, which is the principle of cause and effect. Thus the Pañcaskandhaka says: 'Believing in karma and its results means being completely and correctly aligned with the truths and facts.' In the Mahāyāna, space is subsumed under the truth of cessation, unlike the Sarvāstivāda school; hence there is no fault. The Commentary says it merely speaks broadly of the 'real' to subsume space, but this is not Mahāyāna and cannot be relied upon."