Rasaprakāśasudhākara

Holding poison Here, likely a specific mineral or toxic herb preparation 1 in the belly of a crucible with meat obtained from a pig, roast it with thorn-apple oil; after one week, it takes on a face appearance/form. (33)
It becomes hard and similar to a diamond, there is no doubt in this. It always dries up milk A sign of the mercury's potency in these alchemical processes, for the sake of curiosity, there is no doubt. (34)
It fixes the virility and the diamond, truly, truly, there is no doubt. Five types of binding of the King of Mercury have been declared. (35)

The First Type of Diamond Binding (Vajrabandha)

I shall now declare the second diamond binding Note: The text refers to this as the second type despite the header in proper order, having observed the mercury treatises in many ways. (36)
The wise practitioner should take an equal amount of diamond essence and mercury. One should grind these three—including gold equal to one-quarter part of the mercury—together. (37)
Then, one should process it impregnate with liquid using the juice of the roots of the vandhyā-karkoṭaka a barren or sterile variety of the prickly pear or gourd plant. Similarly, process it with thorn-apple juice and the juice of the citraka Plumbago zeylanica plant. (38)
Process it with the juice of kambojī 2 and also with the juice of nāṇḍī 3. Using these regulating agents, one should wash the mercury with the diamond diamond powder or essence. (39)
One should grind it in the sunlight for one day each in this order. Seal the ball, placed inside a blind crucible, with a firm seal. (40)
Afterward, it should be placed inside an iron casing and sealed firmly. It should be heated with a bellows for the duration of two ghaṭikās a unit of time equal to 24 minutes. (41)
Knowing it has cooled naturally, one should take the crucible. Breaking it open with effort, one should collect the mercurial ash. (42)
Heated with the combination of glass and borax, this ball of mercury will transmute base metals with a hundredfold potency, there is no doubt. (43)
Held in the mouth, it destroys death and becomes a maker of the body and iron implies the ability to transmute the practitioner's body and base metals.

1. Meaning it should be placed inside a crucible treated with poison. 2. Kambojī is Maṣaparṇī (Teramnus labialis) or Guñjā (Abrus precatorius). 3. There is an alternate reading of nāhī-rasena (juice of the cobra/snake plant).

The Second Type of Diamond Binding (Vajrabandha)

Having made diamond ash and mercury equal in quantity, one should grind them. (44)
Grind it for one week in the intense sun with the juice of trinemikā 1, vajravallī Cissus quadrangularis, and sahadevī Vernonia cinerea. (45)
Once the round mercurial ball is dry, one should apply a paste to it. Apply it seven times with the juice of kākamācī Solanum nigrum and the juice of lāṅgalī Gloriosa superba. (46)
Place the ball inside a diamond-crucible and seal it with a firm seal. (47)
Place it in the middle of an iron casing, covering it well with seven layers of mud and cloth, and make it very firm. (48)
Heated with strong bellows and then cooled, break it open. The mercurial pellet found inside will be bright like a star. (49)
It is capable of all tasks, auspicious, and when colored, it becomes a creator of transmutation.

The Binding of Mica Fluid (Abhrakadruti-bandha)

One should grind mercury together with mica fluid abhrakadruti a liquid essence derived from mica. (50)
Grind them together on a stone slab in equal parts for three yāmas a unit of time equal to 3 hours without rest. Add musk, camphor, and black eagle-wood. (51)
Combine it with sugar, garlic, and asafoetida. Also, use the juice of the seeds of the palāśa Butea monosperma tree and its flowers. (52)
When ground with the sun's rays likely meaning ground in sunlight along with the essences, the mercury surely mixes. What is the use of speaking much more? (53)
Then, continue to grind it with the juice of guñjā Abrus precatorius, the white vṛścīvaka 2, and the juice of lāṅgalī Gloriosa superba until the binding occurs. (54)

1. Trinemikā refers to the three-fold Vajravallī or the Sahadevī plant. 2. White vṛścīvaka is white punarnavā (Boerhavia diffusa).