From Part 1 of the Rules of Golf - Etiquette:
Preventing Unnecessary Damage
Players should avoid causing damage to the course by removing divots when taking practice swings or by hitting the head of a club into the ground, whether in anger or for any other reason.
Preventing Unnecessary Damage
Players should avoid causing damage to the course by removing divots when taking practice swings or by hitting the head of a club into the ground, whether in anger or for any other reason.
