Shaykh Ṣāliḥ ibn Fawzān al-Fawzān explains the ruling on greeting someone who is praying. He clarifies that there is no issue with greeting the praying person, and the one praying should respond by making a hand gesture rather than speaking.
What is the ruling on greeting the one praying and how does the one praying reply?
There is no problem in doing so. The one praying should respond with a hand gesture.
