成唯識論述記 9.135

9.135

述曰：由此真如，一者體遍，無處無故，即是圓滿義；二者體常，非生滅故，即是成就義；三者體非虛謬，諸法真理，法實性故，即此體言貫通三處，論影略故通上常、遍也。且言體遍欲顯何義？

The Commentary states: Because of this suchness: first, its substance is omnipresent, as there is no place where it is not, which is the meaning of 'complete'; second, its substance is permanent, as it neither arises nor perishes, which is the meaning of 'accomplished'; third, its substance is neither illusory nor erroneous, being the true principle of all phenomena, their real nature. Thus, the word 'substance' governs all three clauses; because the Treatise expresses this implicitly, [the word 'substance'] applies to 'permanent' and 'omnipresent' above. Now, what meaning is intended to be expressed by saying 'its substance is omnipresent'?