Skandapurana 16.107.12

16.107.12

darśe ca paurṇamāsyāṃ ca karttavyaṃ cāgnihotrajam ..
prāśanaṃ dakṣiṇādānaṃ puroḍāśa iti kriyā .. 12 ..

On the new moon and full moon days, the rite born of the Agnihotra is to be performed: / the tasting, the giving of the priestly gift, and the puroḍāśa offering;