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tadupalabdhir itaretaradravyaguṇavaidharmyāt // 3.1.73 //
na śabdena guṇena saguṇam ākāśam indriyaṃ bhavati/ na śabdaḥ śabdasya vyañjakaḥ, na ca ghrāṇādīnāṃ svaguṇagrahaṇaṃ pratyakṣam, nāpy anumīyate/ anumīyate tu śrotreṇākāśena śabdasya grahaṇam, śabdaguṇatvaṃ ca ākāśasyeti/ pariśeṣaś cānumānaṃ veditavyam/ ātmā tāvat śrotā na karaṇam, manasaḥ śrotratve badhiratvābhāvaḥ, pṛthivyādīnāṃ ghrāṇādibhāve sāmarthyam, śrotrabhāve cāsāmarthyam/