Revivify

Artificer    Cleric    [Druid]    Paladin    [Ranger]

Level 3 Necromancy

Casting Time: 1 action
Range: Touch
Components: V, S, M (diamonds worth 300 gp, which the spell consumes)
Duration: Instantaneous

You touch a creature that has died within the last minute. That creature returns to life with 1 hit point. This spell can't return to life a creature that has died of old age, nor can it restore any missing body parts.

Source: Player's Handbook, p. 272