35. On account of the inferential sign further on, together with Kaitraratha.
The kshattriya-hood of Gânasruti is further to be accepted on account of the Kshattriya Abhipratârin Kaitraratha, who is mentioned further on in this very same Samvargavidyâ which Raikva imparts to Gânasruti.--But why?--As follows. The section beginning 'Once a Brahmakârin
begged of Saunaka Kâpeya and Abhipratârin Kâkshaseni while being waited on at their meal,' and ending 'thus do we, O Brahmakârin, meditate on that being,' shows Kâpeya, Abhipratârin, and the Brahmakârin to be connected with the Samvarga-vidyâ. Now Abhipratârin is a Kshattriya, the other two are Brâhmanas. This shows that there are connected with the vidyâ, Brâhmanas, and from among non-Brâhmanas, a Kshattriya only, but not a Sûdra. It therefore appears appropriate to infer that the person, other than the Brâhmana Raikva, who is likewise connected with this vidyâ, viz. Gânasruti, is likewise a Kshattriya, not a Sûdra.--But how do we know that Abhipratârin is a Kaitraratha and a Kshattriya? Neither of these circumstances is stated in the legend in the Samvarga-vidyâ! To this question the Sûtra replies, 'on account of the inferential mark.' From the inferential mark that Saunaka Kâpeya and Abhipratârin Kâkshaseni are said to have been sitting together at a meal we understand that there is some connexion between Abhipratârin and the Kâpeyas. Now another scriptural passage runs as follows: 'The Kâpeyas made Kaitraratha perform that sacrifice' (Tând Brâ. XX, 12, 5), and this shows that one connected with the Kâpeyas was a Kaitraratha; and a further text shows that a Kaitraratha is a Kshattriya. 'from him there was descended a Kaitraratha who was a prince.' All this favours the inference that Abhipratârin was a Kaitraratha and a Kshattriya.
So far the Sûtras have shown that there is no inferential mark to prove what is contradicted by reasoning, viz. the qualification of the Sûdras. The next Sûtra declares that the non-qualification of the Sûdra proved by reasoning is confirmed by Scripture and Smriti.