Abu Hurairah narrated that : Allah's Messenger said: "Whoever said: “Be quiet' while the Imam is giving the Khutbah then he has committed Laghw (useless activity)”"
SahihSahihHasan SahihBook 4 · Hadith 25
جامع الترمذي
Abu Hurairah narrated that : Allah's Messenger said: "Whoever said: “Be quiet' while the Imam is giving the Khutbah then he has committed Laghw (useless activity)”"