Garudapurana 1.213.15

1.213.15

agnihotropacaraṇaṃ jīvanaṃ ca svakarmabhiḥ /
dharmadāreṣu kalpeta parvavarjaṃ ratikriyāḥ //

Tending the Agnihotra fire, earning a livelihood through one's own duties, / and engaging in sexual union with one's lawful wife except on forbidden days;