成唯識論述記 4.459

4.459

述曰：第四辨界。段食下界用，順欲勝故。觸、意思二遍三界用，六相應者隨識或無，八相應者隨識恒有，故依識轉隨識有無。即顯識食亦通三界，故四食體不減不增，如《大論》第六十六、〈攝事分〉、〈本地〉第五等卷說，此上大乘引傍乘義且出食體。

The Commentary states: The fourth part differentiates the realms. Material nutriment functions in the lower realm because it strongly accords with desire. Contact and volition operate throughout all three realms: those conjoined with the sixth [consciousness] may be present or absent according to the consciousness; those conjoined with the eighth are constantly present according to the consciousness. Thus they operate based on consciousness, being present or absent according to the consciousness. This shows that the nutriment of consciousness also extends to all three realms; hence the substance of the four nutriments neither decreases nor increases, as stated in fascicle sixty-six of the Yogācārabhūmi, the Viniścayasaṃgrahaṇī, and the fifth fascicle of the Mauly-bhūmi. What has been presented above cites the secondary vehicle's tenets within the Mahāyāna to set forth provisionally the substance of nutriment.