tayor dvija-varas tustah

 suddha-bhavanuvrttibhih

provaca vedan akhilan

 sangopanisado guruh

 

Translation: 

 

That best of brahmanas, the spiritual master Sandipani, was satisfied with Their submissive behavior, and thus he taught Them the entire Vedas, together with their six corollaries and the Upanisads.