Corpus of Electronic Texts Edition
Cath Maige Tuired: The Second Battle of Mag Tuired (Author: [unknown])

section 123

Now this is what used to kindle the warriors who were wounded there so that they were more fiery the next day: Dían Cécht, his two sons Octriuil and Míach, and his daughter Airmed were chanting spells over the well named Sláine. They would cast their mortally-wounded men into it as they were struck down; and they were alive when they came out. Their mortally-wounded were healed through the power of the incantation made by the four physicians who were around the well.