My dear lord, Your Lordship has introduced the system of sacrifices through the agency of Dakṣa, and thus one may derive the benefits of religious activities and economic development. Under your regulative principles, the institution of the four varṇās and āśramas is respected. The brāhmaṇas therefore vow to follow this system strictly.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
त्वमेव धर्मार्थदुघाभिपत्तये दक्षेण सूत्रेण ससर्जिथाध्वरम् । त्वयैव लोकेऽवसिताश्च सेतवो यान् ब्राह्मणाः श्रद्दधते धृतव्रताः
tvameva dharmārthadughābhipattaye dakṣeṇa sūtreṇa sasarjithādhvaram | tvayaiva loke'vasitāśca setavo yān brāhmaṇāḥ śraddadhate dhṛtavratāḥ
SB 4.6.44