Revivify

Source: Player's Handbook

Level 3 Necromancy (Artificer, Cleric, Druid, Paladin, Ranger)

Casting Time: Action
Range: Touch
Components: V, S, M (a diamond worth 300+ GP, which the spell consumes)
Duration: Instantaneous

You touch a creature that has died within the last minute. That creature revives with 1 Hit Point. This spell can’t revive a creature that has died of old age, nor does it restore any missing body parts.