Friday Khutbah Etiquette
The Prophet Muhammad (ﷺ) said:
“Whoever performs wudu and does it well, then comes to Jumu‘ah, listens and keeps silent, will have forgiven for him the sins between that Friday and the next, plus an additional three days. But whoever touches the pebbles has engaged in idle behaviour.” — Muslim 857
“idle behaviour”: doing anything distracting during the khutbah (touching the carpet, phone, tasbeeh, or fidgeting).