From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:
To cite a Witch.
Take an earthen pot, not glazed, yarn spun by a girl not yet seven years old. Put the water of the bewitched animal into the pot, then take the egg of a black hen and some of the yarn and move the latter three times round the egg, and ejaculate in the three devils' name; after this put the egg into, the water of the pot, seal the lid of the vessel tightly that no fumes may ooze therefrom, but observe that the head of the lid is below. While setting the pot upon the fire, pronounce the following: Lucifer, devil summon the sorcerer before the witch or me, in the three devils' name.
The grimoires The Book of Forbidden Knowledge Egyptian Secrets of Albertus Magnus lists this spell.