Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said, regarding the saying of Allah Almighty: "Our Lord, whoever brought this (misguidance) upon us, increase him in double punishment in the Fire" [Surah Sad: 61]: "It means vipers and snakes."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 9070