The Compendium of Caraka 6.1.4_6

6.1.4_6

athendrastadāyurvedāmṛtamṛṣibhyaḥ saṃkramyovāca---etat sarvamanuṣṭheyam, ayaṃ ca śivaḥ kālo rasāyanānāṃ, divyāścauṣadhayo &himavatprabhavāḥ prāptavīryāḥ; tadyathā---aindrī, brāhmī, payasyā, kṣīrapuṣpī, śrāvaṇī, mahāśrāvaṇī, śatāvarī, vidārī, jīvantī, punarnavā, nāgabalā, sthirā, vacā, chatrā, aticchatrā, medā, mehāmedā, jīvanīyāścānyāḥ payasā prayuktāḥ ṣaṇmāsāt paramāyurvayaśca taruṇamanāmayatvaṃ svaravarṇasaṃpadamupacayaṃ medhāṃ smṛtimuttamabalamiṣṭāṃścāparān bhāvānāvahanti siddhāḥ//

Then Indra, having transmitted that nectar of Āyurveda to the ṛṣis, said: "All this should be practiced, and this is the auspicious time for rejuvenatives, and the divine herbs arising from the Himavat have attained their potency. Namely: aindrī, brāhmī, payasyā, kṣīrapuṣpī, śrāvaṇī, mahāśrāvaṇī, śatāvarī, vidārī, jīvantī, punarnavā, nāgabalā, sthirā, vacā, chatrā, aticchatrā, medā, mahāmedā, and the other life-giving herbs, properly prepared, taken with milk for six months, bring about supreme lifespan, youthful age, freedom from disease, perfection of voice and complexion, nourishment, intellect, memory, supreme strength, and other desired states."