ĀVDīp zu Ca, Sū., 1, 43.2, 7.0 jīvitapradātṛtvādāyurvedasya puṇyatamatvaṃ boddhavyaṃ yataś caturvargasādhanībhūtajīvitapradam eva sarvottamaṃ bhavati //

Śyainikaśāstra, 3, 17.1 turagaiḥ sādhanībhūtair vidravantaḥ śarādibhiḥ /