金光明最勝王經疏 2.6

2.6

Third, regarding causing the attainment of nirvāṇa: it is stated below, ‘Yet that Tathāgata, wishing to cause sentient beings, having seen nirvāṇa, to give rise to the thought that it is difficult to encounter,’ and so forth. Furthermore, the Mahāyānasaṃgraha says: ‘For the sake of those who, seeing the Tathāgata as permanent, do not delight in nirvāṇa, the Buddha manifests nirvāṇa to make them delight in perfect stillness.’ Therefore, after ‘The Introductory Chapter’, ‘The Lifespan of the Tathāgata’ is explained.