Matsyapurana 143.4

143.4

varṇāśramapratiṣṭhānaṃ kṛtvā mantraiśca taiḥ punaḥ
saṃhitāstu susaṃhṛtya kathaṃ yajñaḥ pravartitaḥ
etacchrutvābravītsūtaḥ śrūyatāṃ tatpracoditam //

The Ṛiṣis said—O Sûta! Pray, explain to us how the performance of sacrifices was propagated at the beginning of the Tretâ age during the sway of Svayambhuva Manu? When the Satyayuga with its Sandhyâ ends the Tretā age begins Owing to good rainfall many kinds of plants and medicinal herbs grow Cities and villages flourish, the inhabitants thereof, begin to perform good deeds Communications are established Varnâśrama dharmas are laid down The people of all class collect together and pour sacrificial oblations into the fire after reciting Vedic mantras and secure sacrificial materials and proper food and know proper methods of living How did they do all these things?—1 4