Historical Rules · 3 July 2020
Rule 120.5
Official source text from the 3 July 2020 Rules release
Damage dealt to a creature or planeswalker doesn’t destroy it. Likewise, the source of that damage doesn’t destroy it. Rather, state-based actions may destroy a creature or planeswalker, or otherwise put it into its owner’s graveyard, due to the results of the damage dealt to that permanent. See rule 704. Example: A player casts Lightning Bolt, an instant that says “Lightning Bolt deals 3 damage to any target,” targeting a 2/2 creature. After Lightning Bolt deals 3 damage to that creature, the creature is destroyed as a state-based action. Neither Lightning Bolt nor the damage dealt by Lightning Bolt destroyed that creature.