Tithyarka 6.1.12

6.1.12

atra nārāyaṇavṛttiḥ—amāvāsyāśabdaḥ pratipatpañcadaśyoḥ sandhivacano'pyatrāparāhvaśabdasamanvayāt tadgatyahorātre varttate | tasyāparāhṇe caturthe bhāge piṇḍapitṛyajñaḥ kāryaḥ | aupavasadhye yajanīye
vā'hani yadā tvahorātrasandhau tithisandhiḥ syāt, tadaupavasathya
evā'hani kriyate iti
ata eva prayogapārijātakāraḥ—
"muhūrttamapyamāvāsyā pratipadyapi cedbhavet
taddinamakṣayaṃ jñeyaṃ parvaśeṣaṃ tu parvavat ||”
iti hemādridhṛtaṃ hārītavacanaṃ piṇḍapitṛyajñaparamayojayat
ayaṃ ca piṇḍapitṛyajñaḥ smārttāgnimatā mṛtapitṛkeṇa yāgapūrvadine
kriyamāṇe darśaśrāddhavyatiṣaṅgeṇa kāryaḥ, "āhitāgniḥ piṇḍapitṛyajñaṃ
kṛtvā karoti | anāhitāgnistu taditareṇa vyatiṣajyate |” iti
pariśiṣṭāt
vyatiṣaṅgo nāma śrāddhapitṛyajñayorvicchidya|vicchidya anuṣṭhānaviśeṣaḥ | yāgadine kriyamāṇastu kevalaḥ kāryaḥ, pūrvadine darśaśrāddhaṃ
yāgadine kevalaḥ pitṛyajña iti bhāvaḥ | āpastambānāmāśvalāyanavannirṇayaḥ tathaivāpastambasmṛteḥ | kātyāyanabaudhāyanairyāgātpūrve'hani kāryaḥ, tathaiva tatsūtre pratipāditatvāt | ityanyatra vistaraḥ
atha kṣayāhaśrāddhakālo nirṇīyate | tatra kṣayāhaśrāddhamekoddiṣṭavidhinā kriyate cet, madhyāhnavyāpinyāṃ kṣayāhatithau kāryyam
yadi pārvaṇavidhinā, tadā'parāhnavyāpinyāṃ kāryyam,
"āmaśrāddhaṃ tu pūrvāhṇe'parāhṇe pārvvaṇaṃ bhavet
ekoddiṣṭaṃ tu madhyāhne mātarvvṛddhinimittakam ||"
iti śātātapavacanāt
dinadvaye'parāhnavyāpitve mādhavīye baudhāyano nirṇayamāha"aparāhnadvayavyāpinyatītasya yadā tithiḥ
kṣaye pūrvāṃ tu karttavyā vṛddhau kāryyā tathottarā ||" iti