Saṃkhyāvarta (संख्यावर्त्त): Commencement of Yajña at the Dawn of Tretāyuga
श्रुत्वा वाक्यं वसुस्तेषाम विचार्य बलाबलम् / वेदशास्त्रमनुस्मृत्य यज्ञतत्त्वमुवाच ह
śrutvā vākyaṃ vasusteṣāma vicārya balābalam / vedaśāstramanusmṛtya yajñatattvamuvāca ha
Hearing their words, Vasu weighed strength and weakness; recalling the Vedas and the śāstras, he spoke of the true essence of sacrifice.