Abu Hurairah (May Allah be pleased with him) reported:
Messenger of Allah (ﷺ) said, "He who performs his Wudu' perfectly and comes to Jumu'ah prayer and listens (to the Khutbah) silently, the sins which he has committed since the previous Friday plus three more days (i.e., 10 days) will be forgiven for him. One who distracts himself with pebbles during the Khutbah will not get the (Jumu'ah) reward".[Muslim].
Arabic/English book reference: Book 1, Hadith 128