The Sanskrit manuscript of the Tridaṇḍamālā preserved at sPos khang monastery in Tibet contains forty Tridaṇḍas. The Tridaṇḍa is a sūtra used for the purpose of liturgical chanting. In the Tridaṇḍamālā, every forty āgama-sūtras are sandwiched between Aśvaghoṣa’s verses. In my presentations at the 2019 and 2020 conferences at Bukkyo University and Soka University, I suggested the strong possibility that many of Aśvaghoṣa’s lost stanzas in the Sūtrālaṃkāra are included in the Tridaṇḍamālā. Furthermore, it was also pointed out that many of the stanzas quoted in the well-known *Mahāprajñāpāramitopadeśa, translated by Kumārajīva in the 5th century, also contain the same Sūtrālaṃkāra stanzas that are found in the Tridaṇḍamāla. In this presentation, continuing my presentations of 2019 and 2020, I point out that many stanzas on śīla included in the 17th Tridaṇḍa, that is Saṃyuktāgama no.1073, are quoted just as they are in the śīla section of the *Mahāprajñāpāramitopadeśa. I also point out that the first two stanzas there, published by Albrecht Hanisch in 2007, are quoted in the Jātakamālā-ṭīkā by Dharmakīrti as stanzas of the Sūtrālaṃkāra by Aśvaghoṣa, and that the Sūtropadeśālaṃkāra is considered as the original source of these very stanzas.
