From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
When a Horse's Urinary Organs are Obstructed.
Tie parsley roots under its snout, or put some olive oil in a spoon or into the hand, and pour into the sick animal's ear. A Plaster that will cause Suppuration and which Heals. Take rye bread, and three or four times the quantity of salt to it. These two articles put into a pea soup which is not larded. Make a thick mush of it and apply to the injuries.
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)