Silence

Cast Time: 1 Action | Range: 120 ft
Mats: V,S | Duration: 10 Minutes | Concentration
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 is immune to
thunder damage, and creatures are deafened
while entirely inside it. Casting a spell that
includes a verbal component is impossible there.
. (Rit