etasyā ucchrayaṇam anu prācīnakarṇā sthūṇā ucchrayanti$ṣaṭsu prakrameṣūtkarāt pratyag āgnīdhraṃ minoti ardham antarvedy ardhaṃ bahirvedi prācīnavaṃśaṃ catuḥsthūṇaṃ sarvataḥ pariśritaṃ dakṣiṇata'upacāram