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In the text, there are only two sutras that describe the characteristics of substances. "Raṣciyadhrauvyāyu sat", 26! "Gukhaparyāvat dravyam 5, Rū." Besides these two, there is a third sutra on the characteristics of substances in the Digambara sutras: "Sat dravya kṣaṇam," 26. These three sutras from the Digambara sutras are completely present in the following Prakrit verse of Kundakunda’s Pancāstikāya:
"दव्यं सल्लक्खणियं उप्पादव्वयधुवत्तसंजुक्त। गुणपज्जयासयं वा जं तं भण्णंति सव्वण्हू" ॥10॥
Apart from this, the semantic and substantial significance of the Tattvārthasūtra in Kundakunda’s famous texts is not coincidental.
3. The author of the Yoga Sutras is believed to be Patanjali. The author of the Mahābhāṣya is also Patanjali, who is the author of the Yoga Sutras. There is no certainty regarding another Patanjali today. It can be said that the Patanjali who is the Mahābhāṣya author and the Yoga Sutra author is the same, and the Yoga Sutras were composed prior to Vikrama’s era, before the second century. The date of the Vyasa's commentary is also not definite; however, there is no reason not to consider it ancient, dating back to the third century of Vikrama.
There is significant semantic and material correlation between the Yoga Sutras and their commentary and the Tattvārtha sutras and their commentary, which is also attractive; however, regarding which one to focus on,
1. For further elaboration on this, see my written Hindi "Darshan" from the introductory page.