Shadgurusishya, before speaking of svalyana, makes the following statements with regard to svalyana's teacher, Saunaka. 'There was,' he says, 'the Skala Samhit (of the Rig-veda), and the Bshkala Samhit; following these two Samhits and the twenty-one Brhmanas, adopting principally the Aitareyaka and supplementing it by the other texts, he who was revered by the whole number of great Rishis composed the first Kalpa-sutra.' He then goes on to speak of svalyana;'Saunaka's pupil was the venerable svalyana. He who knew everything he had learnt from that teacher, composed a Sutra and announced (to Saunaka that he had done so).' Saunaka then destroyed his own Sutra, and determined thatsvalyana's Sutra should be adopted by the students of that Vedic Skh. Thus, says Shadgurusishya, there were twelve works of Saunaka by which a correct knowledge of the Rig-veda was preserved, and three works of svalyana. Saunaka's dasa granths were, the five Anukramanis, the two Vidbnas, the Brhaddaivata, the Prtiskhya, and a Smrta work. svalyana, on the other hand, composed the Srauta-sutra in twelve Adhyyas, the Grihya in four Adhyyas, and the fourth ranyaka: this is svalyana's great Sutra composition.