From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
When a Horse has Sprained his Foot.
Take a stone from under a water-spout, and put the horse's leg upon it, and say:
I place myself upon a hard stone, I have an ailment on my leg bone which causes me much pain, be this pain black or white, grey or red, in less than three days it shall be dead. + + + Three times spoken. Probatum.
The grimoire Egyptian Secrets of Albertus Magnus lists this spell.