True Seeing

Level 6 Divination · SRD 5.2.1 p. 171

Casting Time: Action
Range: Touch
Components: V, S, M (mushroom powder worth 25+ GP, which the spell consumes)
Duration: 1 hour
Classes: Bard, Cleric, Sorcerer, Warlock, Wizard

For the duration, the willing creature you touch has Truesight with a range of 120 feet.