Is it permissible to recite Durood when Prophet Muhammad's (saws) name is mentioned during the Friday Khutbah, considering the instruction by some Sunni scholars not to say it out loud or even whisper it, but only recite it silently in our hearts?
Reciting Durood (Salawaat) is always highly recommended whenever the Prophet (SAWA) is mentioned. It is not enough to remember it in your heart, but we need to recite it. If the situation does not allow to say it loudly,then whisper it.
'Wassalam.