Harry Potter and the Prisoner of Azkaban · Chapter 6
Buckbeak's Attack on Malfoy
During Hagrid's first Care of Magical Creatures class, Malfoy insults Buckbeak after Harry successfully rides the hippogriff; Buckbeak strikes Malfoy.
Outcome
Malfoy exaggerates his injury to get Hagrid fired; Buckbeak faces execution, beginning Hagrid's legal battle.
