Majjhima Nikaya (Coleção dos Discursos Médios) 5:84
SUJATOTassa so alagaddo paṭiparivattitvā hatthe vā bāhāya vā aññatarasmiṁ vā aṅgapaccaṅge ḍaṁseyya.
But that cobra would twist back and bite them on the hand or the arm or other major or minor limb,