Al-Bukhari said: Al-Laith bin Sa'd, who is one of the narrators of this Hadith, said: The two men mentioned by the Prophet (PBUH) in this Hadith were hypocrites (i.e., they revealed Faith and concealed disbelief).
Commentary: Hypocrites are also people of mischievous and doubtful conduct. It is, therefore, not only permissible but necessary to make people aware of their real position so that people become cautious about them and their religious and worldly life may remain safe from their machinations.