Psachim, fol. 118, col. 1.
All animals will one day remonstrate with the serpent and say, "The lion treads upon his prey and devours it, the wolf tears and eats it, but thou, what profit hast thou in biting?" The serpent will reply (Eccl. viii. II), "I am no worse than a slanderer."
Taanith, fol. 8, col. 1.
Adonijah was deprived of life for no other reason than that he was given to quarreling. It is lawful to slander one so evil disposed as he was.
Perek Hashalom.
God will say to the prince of hell, "I from above and thou from below shall judge and condemn the slanderer."
Erchin, fol. 15, col. 2.
The third tongue (i.e., slander) hurts three parties: the slanderer himself, the receiver of slander, and the person slandered.
Ibid.
Four classes do not receive the presence of the Shechinah: scorners, liars, flatterers, and slanderers.