Rāmānujaon Brahma Sūtra 1.3.35

The first section of the vidyâ tells us that Jânasruti bestowed much wealth and food; later on he is represented as sending his door-keeper on an errand; and in the end, as bestowing on Raikva many villages—which shows him to be a territorial lord. All these circumstances suggest Jânasruti's being a Kshattriya, and hence not a member of the lowest caste.—The above Sûtra having declared that the kshattriya-hood of Jânasruti is indicated in the introductory legend, the next Sûtra shows that the same circumstance is indicated in the concluding legend.