How Can They Have Fasted When They Have Been Eating?

Anas ibn Maalik, radhiAllaahu 'anhu, relates how two women sat together, ostensibly on a fast, but indulging in slander and giving vent to their grudges. When the Prophet, sallAllaahu 'alayhi wa sallam, heard of this, he said: "They cannot be said to have fasted. How can they have fasted when they have been eating the flesh of their fellows?"

[Abu Dawud]