Silence
2nd-level Illusion (ritual)
Ritual
Concentration
Casting Time
Action
Range
120 feet
Duration
Concentration, up to 10 minutes
Components
V (Verbal)
S (Somatic)
Description
For the duration, no sound can be created within or pass through a 20-foot-radius Sphere centered on a point you choose within range. Any creature or object entirely inside the Sphere has Immunity to Thunder damage, and creatures have the condition while entirely inside it. Casting a spell that includes a Verbal component is impossible there.
Source: SRD 5.2