Tithyarka 5.p1.8

5.p1.8

śubhayogasamāyuktā śanau śatabhiṣā yadi
mahāmaheti vikhyātā trikotikulamuddharet |” iti
atra caitraḥ kṛṣṇapratipadādirgrāhyaḥ, tatraiva śatabhiṣāyogasaṃbhavāt
atra kṛtyaṃ kalpatarau brahmāṇḍe-“caitrakṛṣṇatrayodaśyāṃ śanau śatabhiṣā yadi
vāruṇīti samākhyātā śubhena mahatī smṛtā
padmamaṣṭadalaṃ kṛtvā taṇḍulairdroṇasammitaiḥ
sauvarṇaṃ rājataṃ tāmraṃ mṛṇmayaṃ vā ghaṭaṃ śubham
sitavastreṇa saṃveṣṭya vāripūrṇaṃ sapallavam
padmasya karṇikāyāṃ tu sthāpayenmantrataḥ kramāt
tanmadhye sthāpayeddevaṃ varuṇaṃ hervanirmitam
palena vā tadarddhena tadarddhenāpi bhaktitaḥ
upacāraiḥ ṣoḍaśabhiḥ pūjayitvā yathāvidhi
kalaśaṃ mūrtisaṃyuktaṃ brāhmaṇāya pradāpayet
āyurā̱rogyamaiśvaryaṃ dhanaṃ ca labhate dhruvam
sarvapāpairvinirmukto yatheṣṭāṃ prāpnuyād gatim ||” iti
ayaṃ yogo gauḍeṣvatiprasiddhaḥ | trayodaśī bhaumena siddhā | somena
viruddhā | yoginyasyāṃ dakṣiṇasyāmiti trayodaśī nirṇītā
atha caturdaśī nirṇīyate | sā śukretarā
taduktaṃ nāradīye—
“tṛtīyekādaśī ṣaṣṭhī śuklapakṣe caturdaśī
pūrvaviddhā na karttavyāḥ karttavyāḥ parasaṃyutāḥ ||” iti
kṛṣṇā pūrvā,
“kṛṣṇapakṣe'ṣṭamī caiva kṛṣṇapakṣe caturdaśī
pūrvaviddhā prakarttavyā paraviddhā na karhicit ||”
ityāpastambokteḥ | upavāse tu śuklā kṛṣṇāpi parayutaiva grāhyā,
“ekādaśyaṣṭamī ṣaṣṭhī ubhe pakṣe caturdaśī
amāvāsyā tṛtīyā ca tā upodhyāḥ parānvitāḥ ||”
iti madanaratne vṛddhavasiṣṭhokteḥ | yattu ‘kṛṣṇapakṣe'ṣṭamī caiva’ iti
vacane kṛṣṇacaturdaśyā upavāse pūrvaviddhatvamuktam, tad rudropavāsaviṣayam,
“rudravrateṣu sarveṣu karttavyā sammukhī tithiḥ |”