Tithyarka 2.p1.36

2.p1.36

mārgakṛṣṇāṣṭamī bhairavāṣṭamī | asyāṃ bhairavaṃ sampūjya vighnaṃ nivārayedityuktaṃ kāśīkhaṇḍe—
"tīrthe kālodake snātvā kṛtvā tarpaṇamatvaraḥ
vilokya kālarājānaṃ nirayāduddharet pitṝn
kṛtvā ca trividhāṃ pūjāṃ mahāsambhāravistaraiḥ
naro mārgasitāṣṭamyāṃ vārṣikaṃ vighnamutsṛjet ||” iti
upoṣaṇāṃ jāgaraṇaṃ coktaṃ tatraiva—
"mārgaśīrṣāsitāṣṭamyāṃ kālabhairavasannidhau
upoṣya jāgaraṃ kurvansarvapāpaiḥ pramucyate ||” iti
upoṣaṇāṅgatvena nārghyadānaṃ kāryamityuktaṃ śivarahasye—
"upoṣaṇāsyāṅgabhūtamarghyadānamiha smṛtam |” iti
atropavāso jāgaraṇāñceti viśiṣṭaṃ pradhānaṃ tasyāhorātrasādhyatveneyamaṣṭamyahorātravyāpinī grāhyā,
“ahorātravrataṃ yacca ekamekatithau gatam
tasyāmubhayayoginyāmācarettad vrataṃ vratī ||”
iti smṛteḥ
yadā tu dinedvaye sāyāhne tadā pūrvaiva | taduktaṃ samayamayūkhe
brahmavaivartte—
“rudravrateṣu sarveṣu karttavyā sammukhī tithiḥ |” iti
idamapi rudravratam, kālabhairavasya rudrāvatāratvāt | yattu
sindhukārajyeṣṭhairuktam— bhairavasannidhāvityukterjāgaraṇopavāsādikaṃ
kāśyāmeva kartavyaṃ tatpramāṇābhāvādupekṣyam | pāraṇaṃ tu prātareva,
“yāmatrayordhvagāminyāṃ prātareva hi pāraṇā |”
iti mādhavallikhitasmṛteḥ | atra pūrṇamānto māso grāhyaḥ,
“kārtike kṛṣṇapakṣe tu aṣṭamyāṃ bhairavo'bhavat |”
iti śivarahasye kārtiketigrahaṇāt
pūrṇamāntapauṣakṛṣṇāṣṭamyaṣṭaketyuktamāśvalāyanena | hemantaśiśirayoścaturṇāmaparapakṣāṇāmaṣṭamīṣvaṣṭakā iti | hemantaḥ śiśira
iti ṛtusaṃjñā | sā coktā śrutau—
“vasanto grīṣmo varṣā śaraddhemantaḥ śiśira iti ṣaḍ vā ṛtavaḥ”