The Compendium of Suśruta 1.13

1.13

uktaṃ prayojanaṃ śāstreṇa saṃbaddhaṃ niruktyā darśayannāha—āyurasminnityādi | āyuḥ śarīrendriyasattvātmasaṃyogaḥ, tacca sopādhikamihābhipretam | yaduktaṃ carake—"hitāhitaṃ sukhaṃ duḥkhamāyustasya hitāhitam | mānaṃ ca tacca yatroktamāyurvedaḥ sa ucyate” (ca. sū. a. 1) iti | evaṃbhūtamāyurasmiñchāstre jñānasādhanībhūte jñāyata ityāyurvedaḥ; evaṃ jñānārthavidipakṣe nirvacanam | "yasya ca bhāvena bhāvalakṣaṇam” (pā. a. 2|
uktaḥ | vindatīti labhyate | āyurlābhaśca śāstrāddheyopādeyajñānajananadvārā heyopādeyahānopādānakaraṇādbhavati | carake tu jñānārtha eva vidiruktaḥ, āyurlābhasyāpi jñānasādhyatayā | yaduktaṃ—"hitāhitataḥ sukhāmukhataḥ pramāṇāpramāṇataśca tadāyarvedayatītyāyurvedaḥ, yataścāyuṣyānyanāyuṣyāṇi ca dravyaguṇakarmāṇi vedayati tato'pyayamāyurvedaḥ" (ca. sū. a. 30) iti |