Tithyarka 1.5.p1.18

1.5.p1.18

“vatsarādau vasantādau balirājye tathaiva ca
pūrvaviddhaiva kartavyā pratipatsarvadā budhaiḥ ||”
iti vṛddhavasiṣṭhavākyāt | atra vedhamāha paiṭhīnasiḥ—
“pakṣadvaye'pi tithayastithiṃ pūrvā tathottarām
tribhirmuhūrttairvidhyanti sāmānyo'yaṃ vidhiḥ smṛtaḥ ||” iti
udayānantaraṃ sthitā trimuhūrttā pūrvatithiruttaratithiṃ vidhyati
astamayāt prāksthitā trimuhūrtottaratithiḥ pūrvatithiṃ vidhyatīti
sāmānyato vedha ityarthaḥ | hemādryādiṣu tu—
“udite daivataṃ bhānau pitryaṃ cāstamite ravau
dvimuhūrtaṃ trirahvaśca sā tithirhavyakavyayoḥ ||”
iti viṣṇudharmottarād dvimuhūrtto'pyukto vedhaḥ | asyārthaḥ—
bhānāvudite sati yad dvimuhūrttaṃ muhūrttadvayaṃ tad daivataṃ devakarmayogyam, evaṃ ravāvastamite'stāsanne sati astamayātpūrvaṃ yadahnaḥ
sambandhi trimuhūrtaṃ muhūrttatrayaṃ tat pitryaṃ pitṛkarmayogyam, tasmāt
tadvartinī tithirhavyakavyayorgrāhyetyarthaḥ | vastutastu—
“dvimuhūrttā na kartavyā yā tithiḥ kṣayagāminī
dvimuhūrttāpi kartavyā yā tithirvṛddhigāminī ||”