How one in Salat replies to Salaam, in accordance with Sunnah
Bismillaah Al-Hamdulillaah wa salatu wa salaamu 'ala rasulullaah
Recently, someone asked Shaykh Saalih as-Suhaymee (hafidhahullaah) :
"How did the Prophet (sallallaahu 'alayhi wa sallam) respond to someone giving (him) salams while he was praying?"
The Shaikh said the Prophet (salallaahu 'alaihi wa sallam) used to respond to the salaam - while engaged in prayer -