陀羅尼雜集 9.60

9.60

若得鹿像共蛇像相纏者，又言龜像，食之，身䩕如石。若用塗身，身不可壞，乃至金剛亦不壞，阿修羅打亦不能壞，無大小便。

If a form of a deer intertwined with a serpent is obtained—also said to be a turtle form—eat it, and the body will become hard as stone. If smeared on the body, the body becomes indestructible, unbroken even by vajra or the blows of asuras, and one will produce no feces or urine.