Amnesia

You create a small puff of magical dust that can temporarily suppress a creature's memory. When you cast this spell, one creature within 5 feet of you must make a Wisdom saving throw against your spell save DC. On a failed save, the creature becomes stunned for one round. Once this effect ends, the creature is unable to recall any events that occurred 10 minutes before the time the spell was cast. This memory lapse ends after the creature completes its next long rest. When the spell ends, any effected creature realizes that you used magic to suppress its memory and may become hostile toward you. A remove curse or greater restoration spell cast on an affected creature can end the effect early. 

When you cast this spell using a spell slot of 3rd level or higher, the length of memory suppressed increases by another 5 minutes for each spell slot above 2nd.