Agniveshyagrihyasutra 3.2.7.12

3.2.7.12

etaddhasma vaitadvidvāṃsaḥ pūrve śrotriyā evamaṣṭakyamannamevamakalpayaṃstena vaite pitṝnatarpayaṃsta enāṃstṛptāḥ prajayā paśubhiratarpayan tato ha pitṛbhirmitramakurvata mitraṃ hyeṣāṃ sarvāṇi bhūtānyāsan sa yo ha vā evaṃ vidvānetamaṣṭakyamannamevaṃ kalpayati \

Knowing this indeed, the ancient learned Brahmins thus prepared the food for the Aṣṭakā; thereby they gratified the ancestors; being gratified, they gratified them with offspring and cattle; from that, they made friends with the ancestors, for all beings were their friends. Whoever, knowing thus, prepares this food for the Aṣṭakā in this way,