Manzum Simya Kitabı: Râzî'ye Atfedilen Sırlar

Here begins the book of Alchemy composed in verse, ascribed to Aristotle, but it appears to be by Rhazes. If you desire, O Athlete, to undergo Alchemical labors, compel these four agile things to undergo the funeral pyres, so that the winged birds of the air do not flee into thin smoke, fleeing from the soft flight. Mortify the living ones first, and restrain their furies, gathering them together by their fluid coldness, until they come to this point, joined after such chains, so that they may become just like an exceedingly white gem. Let the water which penetrates them cook them and glue them together, until the desired work is reached. Let arsenic, sulfur, and salt be associated with Mercury, to which the title of Ammonia gave its praise; so that just as a certain connection is used for those things of Mercury that have been put to flight, so a stony mass of the three is made. Mixed with equal weight under the same mass of liquid, let them be dried first, and afterwards let the heating wave cook them. Let these things become a stone, and again a stone having been resolved, a species of crystal shining within it. Repeat this often, until the divine boiling heat gathers it into a mass so that it itself becomes a stone.