From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
To Ascertain whether a Sick Person will become well again.
Cut a piece of bread, rub the patient's teeth therewith, and throw it before a dog. If he eats it, the patient will recover. Otherwise, the disease is dangerous.
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)