大毘盧遮那成佛經疏 9.6

9.6

世尊坐道場樹下降伏天魔成正覺時，一切世間出世間有種種慶嘉之事，如天樹王上春之月具足開敷。本行菩薩道時所有希願已得如意，即便普現色身，遍於世界開化眾生。又此中言魔軍者，梵本正音博吃芻，是羽翼黨援之義，今依古譯會意言耳。汝今發菩提心，當知已得安坐佛覺沙囉樹王根本之下，以如來加持神力遍伏魔軍。若從此堅固不動，逮見心明道時，即是初發心中便成正覺，以除蓋障三昧普現漫荼羅身，故云得同彼慶也。

When the Bhagavat sat beneath the tree of the seat of awakening, subdued the heavenly Māra, and attained complete enlightenment, various joyful celebrations occurred throughout all worldly and transmundane realms, just as the heavenly tree-king is fully in bloom in the first month of spring. The aspirations he had made while formerly practicing the bodhisattva path were now realized as wished, whereupon he universally manifested his physical body throughout the worlds to teach and transform sentient beings. Furthermore, what is spoken of here as 'army of Māra' correctly sounds in the Sanskrit text as *pakṣa*, which carries the meaning of 'wings' or 'factions/partisans'; here it is rendered following the old translation by grasping the meaning. You now generate the bodhicitta; you should know that you have already come to sit firmly beneath the root of the Buddha's awakening *sāla* tree-king, subduing the army of Māra everywhere through the Tathāgata's empowered divine power. If from here you remain firm and unmoving, and come to perceive the path of mental illumination, that is none other than attaining complete enlightenment within the initial generation of the mind, universally manifesting the maṇḍala body through the Sarvanīvaraṇaviṣkambhin samādhi; hence it says, 'you now obtain a celebration identical to that'.