Abdullah bin Ka'b bin Malik (may Allah have mercy on him) said: One night I heard Sayyiduna Ka'b (may Allah be pleased with him), who was one of the three whose repentance was accepted, say: "When I was given the good news of the repentance, I set out towards the Messenger of Allah (peace and blessings be upon him), and people met me in crowds, congratulating me on Allah's acceptance of my repentance, until, when I entered the mosque, Talhah bin Ubaydullah (may Allah be pleased with him) got up towards me and shook my hand."
Hadith Referenceالمعجم الكبير للطبراني / باب الكاف / 16153