Tithyarka 6.1.5

6.1.5

adhimāse tu samprāpte trayastriṃśattu devatāḥ
uddiśyā'pūpadānena pṛthvīdānaphalaṃ labhet
trayastriṃśadapūpāṃśca kāṃsyapātre nidhāya ca
saghṛtaṃ sahiraṇmañca brāhmaṇāya nivedayet ||” iti
tithyādi saṃkīrtya mama samastapāpakṣayadvārā śrīnarakāridevaprītyarthamidaṃ trayastriṃśadapūpātmakaṃ kāṃsyapātrasthaṃ vāyanaṃ saghṛtaṃ sahiraṇyamamukaśarmaṇe brāhmaṇāya tubhyamahaṃ sampradade | kṛtasyādhimāsavāyanadānasya sāṅgatārthamimāṃ dakṣiṇāṃ tubhyamahaṃ sampradade | iti
yathāśakti dakṣiṇāṃ dattvā prārthayedetairmantraiḥ—
“viṣṇurūpī sahasrāṃśuḥ sarvapāpapraṇāśanaḥ
apūpānnapradānena mama pāpaṃ vyapohatu
nārāyaṇa ! jagadbīja ! bhāskarapratirūpaka !
dānenānena putrāṃśca sampadaścābhivarddhaya
yasya haste gadācakre garuḍo yasya vāhanam
śaṅkhaḥ karatale yasya sa me viṣṇuḥ prasīdatu ||”
iti malamāsanirṇaya ityuparamyate
atha saṃvatsaraḥ, sa ca samyag vasantyasminnayanarttumāsapakṣādaya iti vyutpattyā māsādyavayavayukto'vayavī kaścitpratyakṣaḥ
sa dvādaśamāsairjāyate, “dvādaśa māsāḥ saṃvatsare” iti śruteḥ | atra
māsānāṃ traividhyena saṃvatsaro'pi trividhaḥ | taduktaṃ brahmasiddhānte—
“cāndrasāvanasaurāṇāṃ māsānāṃ tu prabhedataḥ
cāndrasāvanasaurāśca trayaḥ saṃvatsarā amī ||” iti
tatra cāndrasaṃvatsaraścaitraśuklapratipadādiḥ phālgunadarśāntaścatuḥpañcāśadadhikaśatatrayadinātmakaḥ 354 | saurastu meṣādimīnāntaḥ pañcaṣaṣṭyadhikaśatatrayadinātmakaḥ 365 | sāvanastu
ṣaṣṭyuttaraśatatrayadinātmakaḥ 360 | te ca trayaḥ saṃvatsarā
vacanaviśeṣeṇa keṣucit karttavyakarmasu vyavatiṣṭhante, keṣucid