Vaishnava Dharmashastra 48.21

48.21

gaṇānnaṃ gaṇikānnaṃ ca śūdrānnaṃ śrāddhasūtakam
caurasyānnaṃ navaśrāddhaṃ punīdhvaṃ ca yavā mama //

'Purify for me food given by a multitude of persons, the food of a harlot, or of a Sûdra, food offered at a Srâddha, food rendered impure by the birth of a child in the house, the food of a thief, and food offered at a Navasrâddha (or new Srâddha, which takes place on the first, third, fifth, seventh, ninth, and eleventh day after a person's demise).