Agniveshyagrihyasutra 3.8.2.38

3.8.2.38

athainamabhivānyāyai dugdhamardhapātraṃ dakṣiṇata upadadhāti eṣā te yamasādane svadhā nidhīyate gṛhe \

Then on the south he places a half-cup of milk from a cow whose calf is fostered: 'This ancestral food is placed down for you at Yama's abode, in the home.