Agniveshyagrihyasutra 3.2.4.4

3.2.4.4

etaddhasma vai tadvidvāṃsaḥ pūrva ṛṣaya evamaṣṭakyamapūpaṃ catuśśarāvamevamakalpayaṃstena vaite pitṝnatarpayaṃsta enāṃstṛptāḥ prajayā paśubhiratarpayaṃstato ha pitṛbhirmitramakurvata mitraṃ hyeṣāṃ sarvāṇi bhūtānyāsan \

Knowing this indeed, the ancient seers thus prepared the cake for the Aṣṭakā in four dishes; 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.