Bhagavatapurana 7.14.26

7.14.26

saṃskārakālo jāyāyā apatyasyātmanastathā /
pretasaṃsthā mṛtāhaśca karmaṇyabhyudaye nṛpa //

26. O king, Sraddhas should be performed at the time of the purifying ceremonies observed in behalf of his wife, children or himself as also at the time of cremation of a dead body and annually on the day of death; and any other auspicious functions, such as marriage.