Everything I tried didn't return enough results on Google that allows me to say it's widely used in English.
Spray the (area, space, place) with water.
Sprinkle the (area, space, place) with water.
Spray water around the (area, space, place).
Sprinkle water around the (area, space, place).
But in fact, people reading this would have a cup of water and not a spray, so I don't know if any of the above examples convey what I'm trying to say.
Contextualizing the question: Imagine I have a cup of holy or consecrated water and I'm using it to cleanse the space I live of negative energy. I'm using my fingers to do this.