It wasnarrated that Abu Hurairah said:
"The Messenger of Allah (ﷺ)said: 'Whoever performs ablution and performs ablution well, thencomes to Friday (prayer) and sits near (the Imam), and keeps quietandlistens, he will be forgiven for what was between that and theprevious Friday (of sins), and three days more. And whoever touchesthe pebbles then he has engaged in Laghw (idle talk or behaviour)."
English reference: Vol. 1, Book 5, Hadith 1090
Arabic reference: Book 5, Hadith 1143