Dharmasindhu p58

p58

40 athacāturmāsyakālaḥ tatprayoge catvāraḥpakṣāḥ phālgunyāṃcaitryāṃvāpaurṇamāsyāṃvaiśvadevaparvakṛtvācaturṣucaturṣumāseṣvāṣāḍhyādiṣvekaikaṃ parvelyevaṃyāvajjīvamanuṣṭhānamitiyāvajjīvapakṣaḥ uktarītyāsaṃvatsaraparyantamamuṣṭhāyasavaneṣṭyā paśuyāgenavāsomayāgena vā samāpamaṃsaṃvatsarapakṣaḥ prathame'hani vaiśvadevaparva caturthevaruṇapraghāsaparva aṣṭamanavamayoḥsākamedhaparva dvādaśeśunāsīrīyaparveti dvādaśāhapakṣaḥ pañcabhirdinaiḥsamāptauyathāprayogapakṣaḥ dvādaśāhayathāprayogapakṣayorudgayaneśuklapakṣedevanakṣatreṣvārabhyaśuklapakṣaevasamāptiritibahavaḥ kṛṣṇapakṣe vāsamāptiritikecit dvādaśāhapañcāhapakṣayorapisavaneṣṭyādināsamāpanekṛtesakṛtkaraṇam tadabhāveprativatsaramanuṣṭhānam kacidaikāhikaprayogapakṣopyuktaḥ sacacaitryādiṣucatasṛṣupaurṇamāsīṣvekasyāṃkasyāṃcidbhavati kvacittusaptāhapakṣaḥ sayathā dvyahevaiśvadevaparva tṛtīyadinevaruṇapraghāsaḥ caturthegrahameṃdhīyā pañcame mahāhavīṃṣi ṣaṣṭhepiṭṛyajñādikākamedhaparvaśeṣaḥ saptameśunāsīrīyaparveti atraśuklapakṣādiḥpañcāhapakṣoktaḥkālaḥ iticāturmāsyakālanirṇayoddeśaḥ 28