Agniveshyagrihyasutra 3.3.1

Now therefore we shall explain the remainder of the śrāddha.

On the previous day, having offered the evening aupāsana oblation, having controlled the breath, having formed the intention: "Tomorrow I shall perform the monthly śrāddha for the ancestors," or "Tomorrow I shall perform the asterism śrāddha of Yajñaśarman," or "Tomorrow I shall perform the three-fortnight śrāddha of Yajñaśarman," or "Tomorrow I shall perform the six-month śrāddha of Yajñaśarman," or "Tomorrow I shall perform the one-year śrāddha of Yajñaśarman," or having formed the intention: "Tomorrow I shall perform the sapiṇḍīkaraṇa śrāddha of Yajñaśarman"—one invites Brahmins who are pure, learned in the Veda, poor, knowers of the Veda, with sound limbs, not of the same gotra, and not of the same ancestral rishis.

[He invites] two [Brahmins] for the All-gods, [and] three for the ancestors.

If it is an ancestral sapindization rite (sapiṇḍīśrāddha), one [additional Brahmin] is added.

In rites for the newly deceased (pretaśrāddha), he should invite only one.

Saying everywhere: 'Tomorrow the monthly ancestral rite (māsiśrāddha) is to take place for the ancestors; your favor should be granted for it'; likewise, 'Tomorrow the Aṣṭakā ancestral rite is to take place for the ancestors; your favor should be granted for it'; 'Tomorrow the regular ancestral rite (nityaśrāddha) is to take place for the ancestors'; '[Tomorrow] the rite dedicated to a single deceased (ekoddiṣṭa) [is to take place]'; '[Tomorrow] the asterism ancestral rite (nakṣatraśrāddha) [is to take place]'; having honored [them] with perfumes and the like, having honored [them] according to available means with eatables such as sesamum meal, he should give betel and the like.

On the next day, having offered the morning domestic fire oblation, he digs two pits.

In rites for the newly deceased, he digs only one [pit].

At the sapindization rite (sapiṇḍīkaraṇa), having dug three [pits], having scattered sesamum seeds and darbha grass in the pit, having called the Brahmins, he invites [them].

Having washed the feet of the two [Brahmins representing] the All-gods in the northern pit, of the ancestors in the middle one, and having washed the feet of the newly deceased in the southern one, and having honored them, he should give betel.

Wearing the sacred thread over the right shoulder, he should perform everything in the order of the foot-washing.

In the afternoon, he should prepare the boiled sacrificial rice (sthālīpāka) on the domestic fire for feeding the Brahmins.

At the time of invoking the ancestors, wearing the sacred thread over the right shoulder and standing facing south, having invoked [them] and having summoned the Brahmins, he seats them facing the directions as prescribed.

Having offered [the oblations] according to rule, he gives these ancestral balls of rice (piṇḍa) according to the procedure for ancestral balls wherever prescribed.

At the time of arranging the vessels, [he pours water] into one vessel with: 'May the waters come, the ancestors by the path of the gods, the oceans, the streams, having the same nature.

'May they attain all desires in this sacrifice, may these yield inexhaustibly. For the ancestors, I take this guest-water (arghya) for you'—for the father ancestors; 'For the paternal grandfathers, I take this guest-water for you'—for the paternal grandfathers; 'For the paternal great-grandfathers, I take this guest-water for you'—for the paternal great-grandfathers; then into another vessel, he brings water for the newly deceased with: 'For the newly deceased, I take [this] for you.'

'You are sesamum, sacred to Soma, created by the gods at the Gosava [sacrifice].

'Given by the ancients, come as svadhā; satisfy these ancestors and worlds for us, svadhā, obeisance!'—with this he scatters sesamum seeds [into the water].

And with: '[Satisfy] the grandfathers, the great-grandfathers, these worlds for us, svadhā, obeisance!'

And with: 'For the newly deceased, these worlds...'