From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
When a Horse has a Skin growing over the Retina of the Eye.
Take of fresh butter a piece as large as a pigeon's egg and knead with saffron. Put it into the eye of the horse, bandage the eye, and in twenty-four hours the skin will have vanished.
Take one pound of fresh butter, which has not been watered, put it into a pan, heat it, bake twenty cakes of it, keep the lard for future use. A spoonful of the same put into a beverage for a drink, and to desist from drinking anything else, and used as long as is desired, will cure. Probatum.
The grimoire Egyptian Secrets of Albertus Magnus lists this spell.
Timeline of related events
1725Publication of Egyptian Secrets of Albertus Magnus (lists this spell)
1869English-language translation of Egyptian Secrets (lists this spell)