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The author of the commentary written on the sutra is none other than Umāsvāti himself; therefore, there is no need to write separately about him. This has already been stated earlier. Siddhasena and Acharya Haribhadra also consider the commentator and the author of the sutra to be one and the same, which is clearly evident from their examinations of the texts. In the Agastyasiddhanta of the Dashavaikālik, the sutra and commentary attributed to Umāsvāti are cited—page 85. The commentary is also referenced in the Nayanachakra—page 596. Haribhadra considers the composition of the commentary to be from the same author. In this context, the modern conception that the commentary should not be considered as a supplantation is erroneous. No ancient commentator of the Digambara tradition, such as Pujyapada or Akalanka, has mentioned something that contradicts the originality of the commentary. The commentator of Umāsvāti's Tattvarthasūtra is well-known as the Jain master Gandhahasthika.
1. See this 'Introduction', page 20, note 1.
2. “Due to this connection, it is stated that the worldly experience is of a different nature— see page 141, etc.
3. Haribhadra raises the commentary in Bhāṭika, citing the 210th and 211th verses of Prashamarati, saying "Thus, the superior does not have the root within.”
4. The ancient text known as "Namoḍasthula" is cited as "Shakrasthava."