यज्ञप्रवर्तनम् (Yajña-pravartana) — The Institution/Commencement of Sacrifice in Dvāpara
एवं वर्णाश्रमाणां तु प्रविभागं पुरा युगे / युगस्वभावांश्च तथा विधत्ते वै सदा प्रभुः
evaṃ varṇāśramāṇāṃ tu pravibhāgaṃ purā yuge / yugasvabhāvāṃśca tathā vidhatte vai sadā prabhuḥ
Thus the Lord ever ordains, in each age, the divisions of varna and ashrama, and likewise establishes the very nature of the yugas.