Nirnayasindhu 2.p3.10

2.p3.10

śukro divasadaśakaṃ pañcakaṃ caiva vṛddhaḥ paścādahnāṃ tritayamuditaḥ pakṣamaindryāṃ krameṇa | jīvo vṛddhaḥ
śucirapi tathā pakṣamanyaiḥ śiśū tau vṛddhau proktau divasadaśakaṃ cāparaiḥ saptarātram ||” paścimata udaye daśa dināni bālaḥ | aste pañcadināni vṛddhaḥ | pūrvato dinatrayaṃ bālaḥ pakṣaṃ ca
vṛddha ityarthaḥ | jīvo guruḥ || anyatra tvanyathoktam | “prākpaścāduditaḥ śukraḥ pañcasaptadinaṃ
śiśuḥ | viparītaṃ tu vṛddhatvaṃ tadvadeva gurorapi ||” iti || eṣāṃ ca pakṣāṇāṃ vyavasthāmāha
mihiraḥ-“bahavo darśitāḥ kālā ye bālye vārdhakepi vā | grāhyāstatrādhikāḥ śeṣā deśabhedādutāpadi ||” iti
deśabhedaśca madanaratne gārgyaḥ-“śukro guruḥ prākca parākca bālo vindhye daśāvantiṣu saptarātram | vaṃgeṣu hūṇeṣu ca ṣaṭ ca pañca śeṣe ca deśe tridinaṃ vadanti ||” iti || astāderapavādaḥ kāśīkhaṇḍe-“na grahāstodyakṛto doṣo viśveśvarālaye |” tristhalīsetau vāyavīye“godāvaryāṃ gayāyāṃ ca śrīśaile grahaṇadvaye | surāsuragurūṇāṃ ca mauḍhyadoṣo na vidyate ||”
grahaṇadvaye tannimittakakurukṣetrayātrādānādāvityarthaḥ || tadāha tristhalīsetau lallaḥ-“upaplave śītalabhānubhānvorardhodaye vai kapilākhyaṣaṣṭhyām | surāsurejyārastamayopi tīrthe yātrāvidhiḥ saṃkramaṇe ca śastaḥ ||” ‘na mūḍhadoṣo na ca rātridoṣo na cādhimāso na mṛrtina
sūtiḥ' evamapyuttarārdhaṃ paṭhaṃti || ityalaṃ bahunā
malamāse vratanirṇayaḥ
malamāse ca vrataviśeṣa ukto hemādrau pādme- "adhimāse tu saṃprāpte guḍasarpiryutāni ca