From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
When a Horse Falls upon or wrenches his Backbone.
Hie thee to a graveyard and procure a skull, put it into fresh water in a wooden vessel, and let the horse drink three weeks therefrom, and it will become well again. Then take the head of the dead again to its place from whence you took it.
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)