Laṅkāvatāra Sūtra (Vidyābhūṣaṇa)
The Laṅkāvatāra Sūtra consists of ten chapters, named respectively —(1) Rāvaṇādhyeṣaṇā parivarta, (2) Sarvadharmasamuccaya parivarta, (3) Anityatā parivarta, (4) Abhisamaya parivarta, (5) Tathāgata - nityānityatva, (6) Kṣaṇika parivarta, (7) Nairmāṇika parivarta, (8) Māṃsabhakṣaṇa parivarta, (9) Dhāraṇīparivarta, and (10) the Parisamāpti parivarta, which bears no special name.
Throughout the Laṅkāvatāra Sūtra the speaker is Buddha himself. The first chapter of the book is addressed to Rāvaṇa, while the person spoken to in the remaining nine chapters is Mahāmati. Rāvaṇa prayed to Buddha for the solution of two questions, viz. : (1) what is the distinction between dharma and adharma, and (2) how could one pass beyond both dharma and adharma? Buddha’s answers to these questions form the subject-matter of the first chapter. Thereafter 108 questions were asked by Mahāmati, and Buddha’s answers to these questions form the topics of the remaining nine chapters. (Vidyābhūṣaṇa, para 10–11, 833)