Bhagavatapurana 4.12.10

4.12.10

athāyajata yajñeśaṃ kratubhir bhūri-dakṣiṇaiḥ /
dravya-kriyā-devatānāṃ karma karma-phala-pradam //

10. Thereafter he worshipped the Lord of sacrifices by means of many sacrificial performances attended with liberal gifts of gold (Dakshinās); for the religious duty performed with proper materials and ritualistic details and offered to the gods, yields the fruit of Karma (i. e., makes righteous work fruitful).