Agniveshyagrihyasutra 3.3.2.10

3.3.2.10

māsiśrāddhe kṣaṇaḥ kartavya iti māsi aṣṭakāśrāddhe kṣaṇaḥ kartavya ityaṣṭakāsu nityaśrāddhe kṣaṇaḥ kartavya iti nityaśrāddhe ekoddiṣṭaśrāddhe kṣaṇaḥ kartavya ityekoddiṣṭe nakṣatraśrāddhe kṣaṇaḥ kartavya iti nakṣatre tripakṣaśrāddhe kṣaṇaḥ kartavya iti tripakṣe ṣaṇmāsaśrāddhe kṣaṇaḥ kartavya iti ṣaṇmāse saṃvatsaraśrāddhe kṣaṇaḥ kartavya iti saṃvatsare sapiṇḍīkaraṇaśrāddhe kṣaṇaḥ kartavya iti sapiṇḍīkaraṇe prativacanam oṃ tathā ityuktvā prāpnotu bhavān ityāha prāpnavāni itītare pratyāhuḥ \

'In the monthly ancestral rite, the invitation should be accepted'—in the monthly rite; 'In the Aṣṭakā ancestral rite, the invitation should be accepted'—in the Aṣṭakā rites; 'In the regular ancestral rite, the invitation should be accepted'—in the regular rite; 'In the rite dedicated to a single deceased, the invitation should be accepted'—in the rite for a single deceased; 'In the asterism ancestral rite, the invitation should be accepted'—in the asterism rite; 'In the six-week ancestral rite, the invitation should be accepted'—in the six-week rite; 'In the six-month ancestral rite, the invitation should be accepted'—in the six-month rite; 'In the one-year ancestral rite, the invitation should be accepted'—in the one-year rite; 'In the sapindization ancestral rite, the invitation should be accepted'—in the sapindization rite; the response is: 'Om, so be it'; having said, 'May your honor attain [it]', the others reply, 'May I attain [it].'