Ta-Ha 20:20. Juz 16, page 313.
فَأَلْقَىٰهَا فَإِذَا هِىَ حَيَّةٌ تَسْعَىٰ٢٠
So he cast it down, and lo! it was a serpent, gliding.
Ta-Ha 20:20, translated by Marmaduke Pickthall