The Compendium of Caraka 6.1.3.4

6.1.3.4

(iti triphalārasāyanamaparam/)
&sarvalauhaiḥ suvarṇena vacayā madhusarpiṣā/
viḍaṅgapippalībhyāṃ ca triphalā lavaṇena ca//
&`savairlohaiḥ trapusīsatāmrarūpyakṛṣṇalohaiḥ' iti yogīndranāthasena.
saṃvatsaraprayogeṇa medhāsmṛtibalapradā/
bhavatyāyuḥpradā dhanyā jarāroganibarhaṇī//
(iti triphalārasāyanamaparam/)
anamlaṃ ca kaṣāyaṃ ca kaṭu pāke śilājatu/
nātyuṣṇaśītaṃ dhātubhyaścaturbhyastasya saṃbhavaḥ//
hemnaśca rajatāttāmrād-&varāt kṛṣṇāyasādapi/
rasāyanaṃ tadvidhibhistadvṛṣyaṃ tacca roganut//
&`varaṃ' iti pā-.
vātapittakaphaghnaiśca niryūhaistat subhāvitam/
vīryotkarṣaṃ paraṃ yāti sarvairekaikaśo 'api vā//
&prakṣiptoddhṛtamapyenat punastat prakṣipedrase/
koṣṇe saptāhametena vidhinā tasya bhāvanā//
&`śitlājatu koṣṇe vātaharādikvāthe prakṣipya athainaṃ raudre śoṣayet/
pītatatkvāthamuddhṛtaṃ punarapi tad rase kvāthe prakṣipet/
anena vidhinā saptāhaṃ (saptavārān) tasya bhāvanā' iti gaṅgādharaḥ.
pūrvoktena vidhānena lohaiścūrṇīkṛtaiḥ saha/
tat pītaṃ payasā dadyāddīrghamāyuḥ sukhānvitam//
jarāvyādhipraśamanaṃ dehadārḍhya karaṃ param/
medhāsmṛtikaraṃ dhanyaṃ kṣīrāśī tat prayojayet//
prayogaḥ saptasaptāhāstrayaścaikaśca saptakaḥ/
nirdiṣṭastrividhastasya paro madhyo 'avarastathā//
palamardhapalaṃ karṣo mātrā tasya tridhā matā/
jāterviśeṣaṃ savidhiṃ tasya vakṣyāmyataḥ param//
hemādyāḥ sūryasaṃtaptāḥ sravanti giridhātavaḥ/
jatvābhaṃ mṛdu mṛtsnācchaṃ yanmalaṃ tacchilājatu//
madhuraśca satiktaśca japāpuṣpanibhaśca yaḥ/
kaṭurvipāke śītaśca sa suvarṇasya nisravaḥ//

(Thus ends another triphalā rejuvenative.)
With all base metals, gold, vacā, honey, and ghee,
and with viḍaṅga, pippalī, and salt, triphalā,
used for a year, bestows intellect, memory, and strength;
it grants longevity, is auspicious, and destroys old age and disease.
(Thus ends another triphalā rejuvenative.)
Not sour, astringent, and pungent in post-digestive effect is śilājatu;
neither excessively hot nor cold, its origin is from four minerals:
from gold, silver, copper, and from excellent black iron.
It is a rejuvenative when [taken] according to rule, aphrodisiac, and curative of disease.
Thoroughly soaked in decoctions that destroy vāta, pitta, and kapha,
either with all together or each one individually, it attains supreme potency.
Thrown in and taken out, it should be thrown into the warm liquid again;
by this procedure its soaking lasts for seven days.
In conjunction with powdered metals according to the method stated earlier,
that, drunk with milk, will grant a long life accompanied by happiness,
allaying old age and disease, eminently producing bodily firmness,
bestowing intellect and memory, auspicious; living on milk, one should use it.
Its administration is of three types, designated as superior, middling, and inferior:
seven weeks, three [weeks], and one week.
Its dose is considered threefold: a pala, half a pala, and a karṣa.
Hereafter I shall explain the distinctions of its origin along with the method.
When heated by the sun, mountain ores of gold and the like exude
a soft, smooth, clear excretion resembling lac; that is śilājatu.
That which is sweet and bitter, resembling a hibiscus flower,
pungent in post-digestive effect, and cool is the exudation of gold.